From: Alan Stern <stern@rowland.harvard.edu>
Date: Mon, 15 Nov 2010 20:46:07 +0000 (-0500)
Subject: sysfs: remove useless test from sysfs_merge_group
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e030d58e8860f1c87b17631dbdd70747cbe1fb5b;p=deliverable%2Flinux.git

sysfs: remove useless test from sysfs_merge_group

Dan Carpenter pointed out that the new sysfs_merge_group() and
sysfs_unmerge_group() routines requires their grp argument to be
non-NULL, because they dereference grp to obtain the list of
attributes.  Hence it's pointless for the routines to include a test
and special-case handling for when grp is NULL.  This patch (as1433)
removes the unneeded tests.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 442f34ff1af8..c8769dc222d8 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -165,10 +165,7 @@ int sysfs_merge_group(struct kobject *kobj,
 	struct attribute *const *attr;
 	int i;
 
-	if (grp)
-		dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
-	else
-		dir_sd = sysfs_get(kobj->sd);
+	dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
 	if (!dir_sd)
 		return -ENOENT;
 
@@ -195,10 +192,7 @@ void sysfs_unmerge_group(struct kobject *kobj,
 	struct sysfs_dirent *dir_sd;
 	struct attribute *const *attr;
 
-	if (grp)
-		dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
-	else
-		dir_sd = sysfs_get(kobj->sd);
+	dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
 	if (dir_sd) {
 		for (attr = grp->attrs; *attr; ++attr)
 			sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);