linux-kernel - [PATCH] afs: Fix an IS

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Message-ID: <162374279240.549176.3013926133275425458.stgit@warthog.procyon.org.uk>
Date:   Tue, 15 Jun 2021 08:39:52 +0100
From:   David Howells <dhowells@...hat.com>
To:     torvalds@...ux-foundation.org
Cc:     Dan Carpenter <dan.carpenter@...cle.com>,
        linux-afs@...ts.infradead.org, dhowells@...hat.com,
        marc.dionne@...istor.com, linux-afs@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] afs: Fix an IS_ERR() vs NULL check

From: Dan Carpenter <dan.carpenter@...cle.com>

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@...cle.com>
Signed-off-by: David Howells <dhowells@...hat.com>
cc: linux-afs@...ts.infradead.org
Link: https://lore.kernel.org/r/YLjMRKX40pTrJvgf@mwanda/
---

 fs/afs/main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/afs/main.c b/fs/afs/main.c
index b2975256dadb..179004b15566 100644
--- 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;
 	}