Commit 676121fc authored by Ben Collins's avatar Ben Collins Committed by Linus Torvalds
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[PATCH] Unchecked alloc_percpu() return in __create_workqueue()



__create_workqueue() not checking return of alloc_percpu()

NULL dereference was possible.

Signed-off-by: default avatarBen Collins <bcollins@ubuntu.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 9fa37fd1
......@@ -315,6 +315,11 @@ struct workqueue_struct *__create_workqueue(const char *name,
return NULL;
wq->cpu_wq = alloc_percpu(struct cpu_workqueue_struct);
if (!wq->cpu_wq) {
kfree(wq);
return NULL;
}
wq->name = name;
/* We don't need the distraction of CPUs appearing and vanishing. */
lock_cpu_hotplug();
......
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