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sysfs: remove useless test from sysfs_merge_group

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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>
This commit is contained in:
Alan Stern 2010-11-15 15:46:07 -05:00 committed by Greg Kroah-Hartman
parent 6b6e39a6a8
commit e030d58e88
1 changed files with 2 additions and 8 deletions
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6
fs/sysfs/group.c
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@ -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);
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);
if (dir_sd) {
for (attr = grp->attrs; *attr; ++attr)
sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);