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Subject[PATCH] 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>

---

Index: usb-2.6/fs/sysfs/group.c
===================================================================
--- usb-2.6.orig/fs/sysfs/group.c
+++ usb-2.6/fs/sysfs/group.c
@@ -165,10 +165,7 @@ int sysfs_merge_group(struct kobject *ko
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
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);


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