From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 23 Nov 2005 14:15:44 +0000 (-0500)
Subject: [PATCH] sysfs: handle failures in sysfs_make_dirent
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e80a5dea8e056d8f398be1900d61c581d379f02f;p=linux-beck.git

[PATCH] sysfs: handle failures in sysfs_make_dirent

I noticed that if sysfs_make_dirent fails to allocate the sd, then a
null will be passed to sysfs_put.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 59734ba1ee60..d36780382176 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -112,7 +112,11 @@ static int create_dir(struct kobject * k, struct dentry * p,
 			}
 		}
 		if (error && (error != -EEXIST)) {
-			sysfs_put((*d)->d_fsdata);
+			struct sysfs_dirent *sd = (*d)->d_fsdata;
+			if (sd) {
+ 				list_del_init(&sd->s_sibling);
+				sysfs_put(sd);
+			}
 			d_drop(*d);
 		}
 		dput(*d);