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-rw-r--r--fs/hfs/catalog.c12
-rw-r--r--fs/hfs/dir.c8
-rw-r--r--fs/hfs/extent.c48
-rw-r--r--fs/hfs/hfs_fs.h2
-rw-r--r--fs/hfs/inode.c11
-rw-r--r--fs/hfs/super.c4
6 files changed, 61 insertions, 24 deletions
diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c
index 424b033..9569b39 100644
--- a/fs/hfs/catalog.c
+++ b/fs/hfs/catalog.c
@@ -92,7 +92,9 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
return -ENOSPC;
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
entry_size = hfs_cat_build_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
@@ -214,7 +216,9 @@ int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ return res;
hfs_cat_build_key(sb, fd.search_key, dir->i_ino, str);
res = hfs_brec_find(&fd);
@@ -281,7 +285,9 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
dst_dir->i_ino, dst_name->name);
sb = src_dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ if (err)
+ return err;
dst_fd = src_fd;
/* find the old dir entry and read the data */
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 5f7f1ab..e1c8048 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -25,7 +25,9 @@ static struct dentry *hfs_lookup(struct inode *dir, struct dentry *dentry,
struct inode *inode = NULL;
int res;
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res)
+ return ERR_PTR(res);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (res) {
@@ -63,7 +65,9 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
if (filp->f_pos >= inode->i_size)
return 0;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd);
if (err)
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
index a67955a..813447b 100644
--- a/fs/hfs/extent.c
+++ b/fs/hfs/extent.c
@@ -107,7 +107,7 @@ static u16 hfs_ext_lastblock(struct hfs_extent *ext)
return be16_to_cpu(ext->block) + be16_to_cpu(ext->count);
}
-static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
+static int __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
{
int res;
@@ -116,26 +116,31 @@ static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd
res = hfs_brec_find(fd);
if (HFS_I(inode)->flags & HFS_FLG_EXT_NEW) {
if (res != -ENOENT)
- return;
+ return res;
hfs_brec_insert(fd, HFS_I(inode)->cached_extents, sizeof(hfs_extent_rec));
HFS_I(inode)->flags &= ~(HFS_FLG_EXT_DIRTY|HFS_FLG_EXT_NEW);
} else {
if (res)
- return;
+ return res;
hfs_bnode_write(fd->bnode, HFS_I(inode)->cached_extents, fd->entryoffset, fd->entrylength);
HFS_I(inode)->flags &= ~HFS_FLG_EXT_DIRTY;
}
+ return 0;
}
-void hfs_ext_write_extent(struct inode *inode)
+int hfs_ext_write_extent(struct inode *inode)
{
struct hfs_find_data fd;
+ int res = 0;
if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- __hfs_ext_write_extent(inode, &fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (res)
+ return res;
+ res = __hfs_ext_write_extent(inode, &fd);
hfs_find_exit(&fd);
}
+ return res;
}
static inline int __hfs_ext_read_extent(struct hfs_find_data *fd, struct hfs_extent *extent,
@@ -161,8 +166,11 @@ static inline int __hfs_ext_cache_extent(struct hfs_find_data *fd, struct inode
{
int res;
- if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY)
- __hfs_ext_write_extent(inode, fd);
+ if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
+ res = __hfs_ext_write_extent(inode, fd);
+ if (res)
+ return res;
+ }
res = __hfs_ext_read_extent(fd, HFS_I(inode)->cached_extents, inode->i_ino,
block, HFS_IS_RSRC(inode) ? HFS_FK_RSRC : HFS_FK_DATA);
@@ -185,9 +193,11 @@ static int hfs_ext_read_extent(struct inode *inode, u16 block)
block < HFS_I(inode)->cached_start + HFS_I(inode)->cached_blocks)
return 0;
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- res = __hfs_ext_cache_extent(&fd, inode, block);
- hfs_find_exit(&fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (!res) {
+ res = __hfs_ext_cache_extent(&fd, inode, block);
+ hfs_find_exit(&fd);
+ }
return res;
}
@@ -298,7 +308,9 @@ int hfs_free_fork(struct super_block *sb, struct hfs_cat_file *file, int type)
if (total_blocks == blocks)
return 0;
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res)
+ return res;
do {
res = __hfs_ext_read_extent(&fd, extent, cnid, total_blocks, type);
if (res)
@@ -438,7 +450,9 @@ out:
insert_extent:
dprint(DBG_EXTENT, "insert new extent\n");
- hfs_ext_write_extent(inode);
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ goto out;
memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
HFS_I(inode)->cached_extents[0].block = cpu_to_be16(start);
@@ -466,7 +480,6 @@ void hfs_file_truncate(struct inode *inode)
struct address_space *mapping = inode->i_mapping;
void *fsdata;
struct page *page;
- int res;
/* XXX: Can use generic_cont_expand? */
size = inode->i_size - 1;
@@ -488,7 +501,12 @@ void hfs_file_truncate(struct inode *inode)
goto out;
mutex_lock(&HFS_I(inode)->extents_lock);
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res) {
+ mutex_unlock(&HFS_I(inode)->extents_lock);
+ /* XXX: We lack error handling of hfs_file_truncate() */
+ return;
+ }
while (1) {
if (alloc_cnt == HFS_I(inode)->first_blocks) {
hfs_free_extents(sb, HFS_I(inode)->first_extents,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 693df9f..67817af 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -174,7 +174,7 @@ extern const struct inode_operations hfs_dir_inode_operations;
/* extent.c */
extern int hfs_ext_keycmp(const btree_key *, const btree_key *);
extern int hfs_free_fork(struct super_block *, struct hfs_cat_file *, int);
-extern void hfs_ext_write_extent(struct inode *);
+extern int hfs_ext_write_extent(struct inode *);
extern int hfs_extend_file(struct inode *);
extern void hfs_file_truncate(struct inode *);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 3031dfd..0847471 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -416,9 +416,12 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
struct inode *main_inode = inode;
struct hfs_find_data fd;
hfs_cat_rec rec;
+ int res;
dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
- hfs_ext_write_extent(inode);
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ return res;
if (inode->i_ino < HFS_FIRSTUSER_CNID) {
switch (inode->i_ino) {
@@ -515,7 +518,11 @@ static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
if (!inode)
return ERR_PTR(-ENOMEM);
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res) {
+ iput(inode);
+ return ERR_PTR(res);
+ }
fd.search_key->cat = HFS_I(dir)->cat_key;
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (!res) {
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index bbaaa8a..719760b 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -418,7 +418,9 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
}
/* try to get the root inode */
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ goto bail_no_root;
res = hfs_cat_find_brec(sb, HFS_ROOT_CNID, &fd);
if (!res) {
if (fd.entrylength > sizeof(rec) || fd.entrylength < 0) {
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