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smpboot: fix memory leak on error handling

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The cpumask is allocated before threads get created. If the latter step
fails, we need to free the cpumask.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Chris Metcalf <cmetcalf@ezchip.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Frederic Weisbecker 2015-09-04 15:45:00 -07:00 committed by Linus Torvalds
parent a068acf2ee
commit 5869b5064b
1 changed files with 1 additions and 0 deletions
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kernel/smpboot.c
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@ -301,6 +301,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
ret = __smpboot_create_thread(plug_thread, cpu);
if (ret) {
smpboot_destroy_threads(plug_thread);
free_cpumask_var(plug_thread->cpumask);
goto out;
}
smpboot_unpark_thread(plug_thread, cpu);