padata: fix sysfs store callback check

JIRA: https://issues.redhat.com/browse/RHEL-81522

commit 9ff6e94
Author: Thomas Weißschuh <linux@weissschuh.net>
Date:   Fri, 27 Dec 2024 23:32:01 +0100

    padata: fix sysfs store callback check

    padata_sysfs_store() was copied from padata_sysfs_show() but this check
    was not adapted. Today there is no attribute which can fail this
    check, but if there is one it may as well be correct.

    Fixes: 5e017dc ("padata: Added sysfs primitives to padata subsystem")
    Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Waiman Long <longman@redhat.com>

Author: Waiman-Long

kernel/padata.c

@@ -970,7 +970,7 @@ static ssize_t padata_sysfs_store(struct kobject *kobj, struct attribute *attr,
 
 	pinst = kobj2pinst(kobj);
 	pentry = attr2pentry(attr);
-	if (pentry->show)
+	if (pentry->store)
 		ret = pentry->store(pinst, attr, buf, count);
 
 	return ret;