Commit e28045ab authored Mar 05, 2014 by Zhouyi Zhou Committed by Joerg Roedel Mar 05, 2014

iommu/omap: Check for NULL in iopte_free()



The iopte_free() function should check for NULL because
kmem_cache_free() will panic on NULL argument.

Signed-off-by: Zhouyi Zhou <yizhouzhou@ict.ac.cn>
Signed-off-by: Joerg Roedel <joro@8bytes.org>

parent 07a02030

drivers/iommu/omap-iommu.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -520,6 +520,7 @@ static void flush_iopte_range(u32 first, u32 last)
		static void iopte_free(u32 *iopte)
		{
		/* Note: freed iopte's must be clean ready for re-use */
		if (iopte)
		kmem_cache_free(iopte_cachep, iopte);
		}