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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
	Steve French <sfrench@samba.org>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 8/8] CIFS: One function call less in cifs_do_create() after error detection
Date: Sun, 20 Aug 2017 18:42:11 +0200
Message-ID: <3b7e0d4a-6707-c44f-8775-9e10a291fcd2@users.sourceforge.net> (raw)
In-Reply-To: <826310e5-e01c-38af-90df-c5630f761a4d@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 20 Aug 2017 17:47:44 +0200

The kfree() function was called in a few cases by the
cifs_do_create() function during error handling even if
the passed variable contained a null pointer.

Add a jump target according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 fs/cifs/dir.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 69babcf4f653..73e68aa5326e 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -258,7 +258,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
 				CIFSSMBClose(xid, tcon, fid->netfid);
 				iput(newinode);
 				rc = -EISDIR;
-				goto out;
+				goto free_path;
 			}
 
 			if (!S_ISREG(newinode->i_mode)) {
@@ -301,7 +301,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
 			break;
 
 		default:
-			goto out;
+			goto free_path;
 		}
 		/*
 		 * fallthrough to retry, using older open call, this is case
@@ -334,13 +334,13 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
 
 	if (!server->ops->open) {
 		rc = -ENOSYS;
-		goto out;
+		goto free_path;
 	}
 
 	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 	if (buf == NULL) {
 		rc = -ENOMEM;
-		goto out;
+		goto free_path;
 	}
 
 	/*
@@ -444,6 +444,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
 
 out:
 	kfree(buf);
+free_path:
 	kfree(full_path);
 	return rc;
 
-- 
2.14.0


      parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-20 16:32 [PATCH 0/8] CIFS: Adjustments for several function implementations SF Markus Elfring
2017-08-20 16:33 ` [PATCH 1/8] CIFS: Delete 11 error messages for a failed memory allocation SF Markus Elfring
2017-08-20 16:38 ` [PATCH 4/8] CIFS: Use common error handling code in cifs_mknod() SF Markus Elfring
2017-08-20 16:39 ` [PATCH 5/8] CIFS: Less function calls in cifs_mknod() after error detection SF Markus Elfring
     [not found] ` <826310e5-e01c-38af-90df-c5630f761a4d-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
2017-08-20 16:35   ` [PATCH 2/8] CIFS: Improve 27 size determinations SF Markus Elfring
2017-08-20 16:36   ` [PATCH 3/8] CIFS: One function call less in cifs_lookup() after error detection SF Markus Elfring
2017-08-20 16:40   ` [PATCH 6/8] CIFS: Return directly after a failed build_path_from_dentry() in cifs_do_create() SF Markus Elfring
2019-11-07  3:34     ` Steve French
2017-08-20 16:41 ` [PATCH 7/8] CIFS: Delete an unnecessary variable initialisation " SF Markus Elfring
2017-08-20 16:42 ` SF Markus Elfring [this message]

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