linux-kernel - [PATCH] cifs: Fix inconsistent IS_ERR and PTR

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Message-ID: <20210218092812.20004-1-yuehaibing@huawei.com>
Date:   Thu, 18 Feb 2021 17:28:12 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <sfrench@...ba.org>, <scabrero@...e.de>,
        <dan.carpenter@...cle.com>, <aaptel@...e.com>
CC:     <linux-cifs@...r.kernel.org>, <samba-technical@...ts.samba.org>,
        <linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] cifs: Fix inconsistent IS_ERR and PTR_ERR

Fix inconsistent IS_ERR and PTR_ERR in cifs_find_swn_reg(). The proper
pointer to be passed as argument to PTR_ERR() is share_name.

This bug was detected with the help of Coccinelle.

Fixes: bf80e5d4259a ("cifs: Send witness register and unregister commands to userspace daemon")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 fs/cifs/cifs_swn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/cifs_swn.c b/fs/cifs/cifs_swn.c
index d35f599aa00e..f2d730fffccb 100644
--- a/fs/cifs/cifs_swn.c
+++ b/fs/cifs/cifs_swn.c
@@ -272,7 +272,7 @@ static struct cifs_swn_reg *cifs_find_swn_reg(struct cifs_tcon *tcon)
 	if (IS_ERR(share_name)) {
 		int ret;
 
-		ret = PTR_ERR(net_name);
+		ret = PTR_ERR(share_name);
 		cifs_dbg(VFS, "%s: failed to extract share name from target '%s': %d\n",
 				__func__, tcon->treeName, ret);
 		kfree(net_name);
-- 
2.22.0