From 496ad9aa8ef448058e36ca7a787c61f2e63f0f54 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 23 Jan 2013 17:07:38 -0500 Subject: new helper: file_inode(file) Signed-off-by: Al Viro --- fs/proc/base.c | 38 +++++++++++++++++++------------------- fs/proc/generic.c | 10 +++++----- fs/proc/inode.c | 14 +++++++------- fs/proc/nommu.c | 2 +- fs/proc/proc_net.c | 2 +- fs/proc/proc_sysctl.c | 4 ++-- fs/proc/task_mmu.c | 6 +++--- fs/proc/task_nommu.c | 2 +- 8 files changed, 39 insertions(+), 39 deletions(-) (limited to 'fs/proc') diff --git a/fs/proc/base.c b/fs/proc/base.c index 9b43ff77..760268d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -383,7 +383,7 @@ static int lstats_open(struct inode *inode, struct file *file) static ssize_t lstats_write(struct file *file, const char __user *buf, size_t count, loff_t *offs) { - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); if (!task) return -ESRCH; @@ -602,7 +602,7 @@ static const struct inode_operations proc_def_inode_operations = { static ssize_t proc_info_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); unsigned long page; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -668,7 +668,7 @@ static const struct file_operations proc_single_file_operations = { static int __mem_open(struct inode *inode, struct file *file, unsigned int mode) { - struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); struct mm_struct *mm; if (!task) @@ -869,7 +869,7 @@ static const struct file_operations proc_environ_operations = { static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); char buffer[PROC_NUMBUF]; int oom_adj = OOM_ADJUST_MIN; size_t len; @@ -916,7 +916,7 @@ static ssize_t oom_adj_write(struct file *file, const char __user *buf, goto out; } - task = get_proc_task(file->f_path.dentry->d_inode); + task = get_proc_task(file_inode(file)); if (!task) { err = -ESRCH; goto out; @@ -976,7 +976,7 @@ static const struct file_operations proc_oom_adj_operations = { static ssize_t oom_score_adj_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); char buffer[PROC_NUMBUF]; short oom_score_adj = OOM_SCORE_ADJ_MIN; unsigned long flags; @@ -1019,7 +1019,7 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf, goto out; } - task = get_proc_task(file->f_path.dentry->d_inode); + task = get_proc_task(file_inode(file)); if (!task) { err = -ESRCH; goto out; @@ -1067,7 +1067,7 @@ static const struct file_operations proc_oom_score_adj_operations = { static ssize_t proc_loginuid_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); struct task_struct *task = get_proc_task(inode); ssize_t length; char tmpbuf[TMPBUFLEN]; @@ -1084,7 +1084,7 @@ static ssize_t proc_loginuid_read(struct file * file, char __user * buf, static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); char *page, *tmp; ssize_t length; uid_t loginuid; @@ -1142,7 +1142,7 @@ static const struct file_operations proc_loginuid_operations = { static ssize_t proc_sessionid_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); struct task_struct *task = get_proc_task(inode); ssize_t length; char tmpbuf[TMPBUFLEN]; @@ -1165,7 +1165,7 @@ static const struct file_operations proc_sessionid_operations = { static ssize_t proc_fault_inject_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); char buffer[PROC_NUMBUF]; size_t len; int make_it_fail; @@ -1197,7 +1197,7 @@ static ssize_t proc_fault_inject_write(struct file * file, make_it_fail = simple_strtol(strstrip(buffer), &end, 0); if (*end) return -EINVAL; - task = get_proc_task(file->f_dentry->d_inode); + task = get_proc_task(file_inode(file)); if (!task) return -ESRCH; task->make_it_fail = make_it_fail; @@ -1237,7 +1237,7 @@ static ssize_t sched_write(struct file *file, const char __user *buf, size_t count, loff_t *offset) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct task_struct *p; p = get_proc_task(inode); @@ -1288,7 +1288,7 @@ static ssize_t sched_autogroup_write(struct file *file, const char __user *buf, size_t count, loff_t *offset) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct task_struct *p; char buffer[PROC_NUMBUF]; int nice; @@ -1343,7 +1343,7 @@ static const struct file_operations proc_pid_sched_autogroup_operations = { static ssize_t comm_write(struct file *file, const char __user *buf, size_t count, loff_t *offset) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct task_struct *p; char buffer[TASK_COMM_LEN]; @@ -2146,7 +2146,7 @@ out_no_task: static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); char *p = NULL; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -2167,7 +2167,7 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); char *page; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -2256,7 +2256,7 @@ static const struct inode_operations proc_attr_dir_inode_operations = { static ssize_t proc_coredump_filter_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); struct mm_struct *mm; char buffer[PROC_NUMBUF]; size_t len; @@ -2308,7 +2308,7 @@ static ssize_t proc_coredump_filter_write(struct file *file, goto out_no_task; ret = -ESRCH; - task = get_proc_task(file->f_dentry->d_inode); + task = get_proc_task(file_inode(file)); if (!task) goto out_no_task; diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 76ddae8..7dfe548 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -42,7 +42,7 @@ static ssize_t __proc_file_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode * inode = file_inode(file); char *page; ssize_t retval=0; int eof=0; @@ -188,7 +188,7 @@ static ssize_t proc_file_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; spin_lock(&pde->pde_unload_lock); @@ -209,7 +209,7 @@ static ssize_t proc_file_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; if (pde->write_proc) { @@ -460,7 +460,7 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, { unsigned int ino; int i; - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); int ret = 0; ino = inode->i_ino; @@ -522,7 +522,7 @@ out: int proc_readdir(struct file *filp, void *dirent, filldir_t filldir) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); return proc_readdir_de(PDE(inode), filp, dirent, filldir); } diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 439ae688..38f5c11 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -144,7 +144,7 @@ void pde_users_dec(struct proc_dir_entry *pde) static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); loff_t rv = -EINVAL; loff_t (*llseek)(struct file *, loff_t, int); @@ -179,7 +179,7 @@ static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence) static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); @@ -201,7 +201,7 @@ static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *); @@ -223,7 +223,7 @@ static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *pts) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); unsigned int rv = DEFAULT_POLLMASK; unsigned int (*poll)(struct file *, struct poll_table_struct *); @@ -245,7 +245,7 @@ static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *p static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); long rv = -ENOTTY; long (*ioctl)(struct file *, unsigned int, unsigned long); @@ -268,7 +268,7 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne #ifdef CONFIG_COMPAT static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); long rv = -ENOTTY; long (*compat_ioctl)(struct file *, unsigned int, unsigned long); @@ -291,7 +291,7 @@ static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma) { - struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); + struct proc_dir_entry *pde = PDE(file_inode(file)); int rv = -EIO; int (*mmap)(struct file *, struct vm_area_struct *); diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c index b1822dd..ccfd99b 100644 --- a/fs/proc/nommu.c +++ b/fs/proc/nommu.c @@ -45,7 +45,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region) file = region->vm_file; if (file) { - struct inode *inode = region->vm_file->f_path.dentry->d_inode; + struct inode *inode = file_inode(region->vm_file); dev = inode->i_sb->s_dev; ino = inode->i_ino; } diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index fe72cd0..75df0d7 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -163,7 +163,7 @@ static int proc_tgid_net_readdir(struct file *filp, void *dirent, struct net *net; ret = -EINVAL; - net = get_proc_task_net(filp->f_path.dentry->d_inode); + net = get_proc_task_net(file_inode(filp)); if (net != NULL) { ret = proc_readdir_de(net->proc_net, filp, dirent, filldir); put_net(net); diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 1827d88..612df79 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -478,7 +478,7 @@ out: static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf, size_t count, loff_t *ppos, int write) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct ctl_table_header *head = grab_header(inode); struct ctl_table *table = PROC_I(inode)->sysctl_entry; ssize_t error; @@ -542,7 +542,7 @@ static int proc_sys_open(struct inode *inode, struct file *filp) static unsigned int proc_sys_poll(struct file *filp, poll_table *wait) { - struct inode *inode = filp->f_path.dentry->d_inode; + struct inode *inode = file_inode(filp); struct ctl_table_header *head = grab_header(inode); struct ctl_table *table = PROC_I(inode)->sysctl_entry; unsigned int ret = DEFAULT_POLLMASK; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index ca5ce7f..3e636d8 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -271,7 +271,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) const char *name = NULL; if (file) { - struct inode *inode = vma->vm_file->f_path.dentry->d_inode; + struct inode *inode = file_inode(vma->vm_file); dev = inode->i_sb->s_dev; ino = inode->i_ino; pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT; @@ -743,7 +743,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf, return rv; if (type < CLEAR_REFS_ALL || type > CLEAR_REFS_MAPPED) return -EINVAL; - task = get_proc_task(file->f_path.dentry->d_inode); + task = get_proc_task(file_inode(file)); if (!task) return -ESRCH; mm = get_task_mm(task); @@ -1015,7 +1015,7 @@ static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask, static ssize_t pagemap_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + struct task_struct *task = get_proc_task(file_inode(file)); struct mm_struct *mm; struct pagemapread pm; int ret = -ESRCH; diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 1ccfa53..56123a6 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -149,7 +149,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, file = vma->vm_file; if (file) { - struct inode *inode = vma->vm_file->f_path.dentry->d_inode; + struct inode *inode = file_inode(vma->vm_file); dev = inode->i_sb->s_dev; ino = inode->i_ino; pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT; -- cgit v1.1 From 4f522a247bc26d4ab5c8fc406ffffa8b3a77abe3 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 11 Feb 2013 23:20:37 -0500 Subject: d_hash_and_lookup(): export, switch open-coded instances * calling conventions change - ERR_PTR() is returned on ->d_hash() errors; NULL is just for dcache miss now. * exported, open-coded instances in ncpfs and cifs converted. Signed-off-by: Al Viro --- fs/proc/base.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/proc') diff --git a/fs/proc/base.c b/fs/proc/base.c index 760268d..9d96255 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2618,6 +2618,7 @@ static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid) name.name = buf; name.len = snprintf(buf, sizeof(buf), "%d", pid); + /* no ->d_hash() rejects on procfs */ dentry = d_hash_and_lookup(mnt->mnt_root, &name); if (dentry) { shrink_dcache_parent(dentry); -- cgit v1.1 From 41735818766c0ec215b9a69591e7eae642061954 Mon Sep 17 00:00:00 2001 From: Zhao Hongjiang Date: Wed, 20 Feb 2013 13:13:55 +1100 Subject: fs: change return values from -EACCES to -EPERM According to SUSv3: [EACCES] Permission denied. An attempt was made to access a file in a way forbidden by its file access permissions. [EPERM] Operation not permitted. An attempt was made to perform an operation limited to processes with appropriate privileges or to the owner of a file or other resource. So -EPERM should be returned if capability checks fails. Strictly speaking this is an API change since the error code user sees is altered. Signed-off-by: Zhao Hongjiang Acked-by: Jan Kara Acked-by: Steven Whitehouse Acked-by: Ian Kent Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- fs/proc/base.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/proc') diff --git a/fs/proc/base.c b/fs/proc/base.c index 9d96255..f3b133d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1711,7 +1711,7 @@ static int map_files_d_revalidate(struct dentry *dentry, unsigned int flags) return -ECHILD; if (!capable(CAP_SYS_ADMIN)) { - status = -EACCES; + status = -EPERM; goto out_notask; } @@ -1844,7 +1844,7 @@ static struct dentry *proc_map_files_lookup(struct inode *dir, struct dentry *result; struct mm_struct *mm; - result = ERR_PTR(-EACCES); + result = ERR_PTR(-EPERM); if (!capable(CAP_SYS_ADMIN)) goto out; @@ -1900,7 +1900,7 @@ proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir) ino_t ino; int ret; - ret = -EACCES; + ret = -EPERM; if (!capable(CAP_SYS_ADMIN)) goto out; -- cgit v1.1 From 87e0aab37ff6c4284810a48d6034314fbf4eb319 Mon Sep 17 00:00:00 2001 From: Maxim Patlasov Date: Wed, 20 Feb 2013 13:13:32 +1100 Subject: proc: avoid extra pde_put() in proc_fill_super() If proc_get_inode() succeeded, but d_make_root() failed, pde_put() for proc_root will be called twice: the first time due to iput() called from d_make_root() and the second time directly in the end of proc_fill_super(). Signed-off-by: Maxim Patlasov Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- fs/proc/inode.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'fs/proc') diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 38f5c11..98a7d28 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -486,6 +486,8 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) int proc_fill_super(struct super_block *s) { + struct inode *root_inode; + s->s_flags |= MS_NODIRATIME | MS_NOSUID | MS_NOEXEC; s->s_blocksize = 1024; s->s_blocksize_bits = 10; @@ -494,11 +496,18 @@ int proc_fill_super(struct super_block *s) s->s_time_gran = 1; pde_get(&proc_root); - s->s_root = d_make_root(proc_get_inode(s, &proc_root)); - if (s->s_root) - return 0; + root_inode = proc_get_inode(s, &proc_root); + if (!root_inode) { + printk(KERN_ERR "proc_fill_super: get root inode failed\n"); + pde_put(&proc_root); + return -ENOMEM; + } - printk("proc_read_super: get root inode failed\n"); - pde_put(&proc_root); - return -ENOMEM; + s->s_root = d_make_root(root_inode); + if (!s->s_root) { + printk(KERN_ERR "proc_fill_super: allocate dentry failed\n"); + return -ENOMEM; + } + + return 0; } -- cgit v1.1 From d3d009cb965eae7e002ea5badf603ea8f4c34915 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 25 Jan 2013 20:11:22 -0500 Subject: saner proc_get_inode() calling conventions Make it drop the pde in *all* cases when no new reference to it is put into an inode - both when an inode had already been set up (as we were already doing) and when inode allocation has failed. Makes for simpler logics in callers... Signed-off-by: Al Viro --- fs/proc/generic.c | 21 +++++++-------------- fs/proc/inode.c | 10 +++------- 2 files changed, 10 insertions(+), 21 deletions(-) (limited to 'fs/proc') diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 7dfe548..2983dc5 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -412,8 +412,7 @@ static const struct dentry_operations proc_dentry_operations = struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir, struct dentry *dentry) { - struct inode *inode = NULL; - int error = -ENOENT; + struct inode *inode; spin_lock(&proc_subdir_lock); for (de = de->subdir; de ; de = de->next) { @@ -422,22 +421,16 @@ struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir, if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { pde_get(de); spin_unlock(&proc_subdir_lock); - error = -ENOMEM; inode = proc_get_inode(dir->i_sb, de); - goto out_unlock; + if (!inode) + return ERR_PTR(-ENOMEM); + d_set_d_op(dentry, &proc_dentry_operations); + d_add(dentry, inode); + return NULL; } } spin_unlock(&proc_subdir_lock); -out_unlock: - - if (inode) { - d_set_d_op(dentry, &proc_dentry_operations); - d_add(dentry, inode); - return NULL; - } - if (de) - pde_put(de); - return ERR_PTR(error); + return ERR_PTR(-ENOENT); } struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry, diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 98a7d28..70322e1 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -445,12 +445,9 @@ static const struct file_operations proc_reg_file_ops_no_compat = { struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) { - struct inode * inode; + struct inode *inode = iget_locked(sb, de->low_ino); - inode = iget_locked(sb, de->low_ino); - if (!inode) - return NULL; - if (inode->i_state & I_NEW) { + if (inode && (inode->i_state & I_NEW)) { inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; PROC_I(inode)->pde = de; @@ -482,7 +479,7 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) } else pde_put(de); return inode; -} +} int proc_fill_super(struct super_block *s) { @@ -499,7 +496,6 @@ int proc_fill_super(struct super_block *s) root_inode = proc_get_inode(s, &proc_root); if (!root_inode) { printk(KERN_ERR "proc_fill_super: get root inode failed\n"); - pde_put(&proc_root); return -ENOMEM; } -- cgit v1.1