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authorZhao Hongjiang <zhaohongjiang@huawei.com>2013-02-20 13:13:55 +1100
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-26 02:46:14 -0500
commit41735818766c0ec215b9a69591e7eae642061954 (patch)
tree564ccbbc05d987f833050573e7fad23ce34dfc89 /fs/proc/base.c
parent9cc64ceaa8b8e8c874519caee79e18cb35d3ce3e (diff)
downloadop-kernel-dev-41735818766c0ec215b9a69591e7eae642061954.zip
op-kernel-dev-41735818766c0ec215b9a69591e7eae642061954.tar.gz
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 <zhaohongjiang@huawei.com> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Ian Kent <raven@themaw.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r--fs/proc/base.c6
1 files changed, 3 insertions, 3 deletions
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;
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