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afs: Fix an IS_ERR() vs NULL check 

[ Upstream commit a33d62662d275cee22888fa7760fe09d5b9cd1f9 ]

The proc_symlink() function returns NULL on error, it doesn't return
error pointers.

Fixes: 5b86d4ff5d ("afs: Implement network namespacing")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/YLjMRKX40pTrJvgf@mwanda/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-06-15 08:39:52 +01:00 committed by Greg Kroah-Hartman
parent 2a3f74ca16
commit 0498165c6f
1 changed files with 2 additions and 2 deletions
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4
fs/afs/main.c
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@ -196,8 +196,8 @@ static int __init afs_init(void)
goto error_fs;
afs_proc_symlink = proc_symlink("fs/afs", NULL, "../self/net/afs");
if (IS_ERR(afs_proc_symlink)) {
ret = PTR_ERR(afs_proc_symlink);
if (!afs_proc_symlink) {
ret = -ENOMEM;
goto error_proc;
}