afs: Fix an IS_ERR() vs NULL check

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

Fixes: 5b86d4ff5dce ("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>

diff --git a/fs/afs/main.c b/fs/afs/main.c
index b297525..179004b 100644 (file)
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -203,8 +203,8 @@ 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;
        }