Commit c80e7a82 authored Jul 15, 2007 by Rusty Russell Committed by Linus Torvalds Jul 16, 2007

permit mempool_free(NULL)



Christian Borntraeger points out that mempool_free() doesn't noop when
handed NULL.  This is inconsistent with the other free-like functions
in the kernel.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 5e70030d

mm/mempool.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -263,6 +263,9 @@ void mempool_free(void element, mempool_t pool)
		{
		unsigned long flags;

		if (unlikely(element == NULL))
		return;

		smp_mb();
		if (pool->curr_nr < pool->min_nr) {
		spin_lock_irqsave(&pool->lock, flags);