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iommu/amd: Drop null test before destroy functions

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Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression x; @@
-if (x != NULL) {
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
  x = NULL;
-}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Julia Lawall 2015-09-13 14:15:31 +02:00 committed by Joerg Roedel
parent 4781bc427b
commit a591989a7c
1 changed files with 2 additions and 5 deletions
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7
drivers/iommu/amd_iommu_init.c
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@ -1755,11 +1755,8 @@ static void __init free_on_init_error(void)
free_pages((unsigned long)irq_lookup_table,
get_order(rlookup_table_size));
if (amd_iommu_irq_cache) {
kmem_cache_destroy(amd_iommu_irq_cache);
amd_iommu_irq_cache = NULL;
}
kmem_cache_destroy(amd_iommu_irq_cache);
amd_iommu_irq_cache = NULL;
free_pages((unsigned long)amd_iommu_rlookup_table,
get_order(rlookup_table_size));