s390/pci: use kmem_cache_zalloc instead of kmem_cache_alloc/memset

Using kmem_cache_zalloc() instead of kmem_cache_alloc() and memset().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 0723b1077a64..b0cef4db2413 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -602,10 +602,9 @@ struct zpci_dev *zpci_alloc_device(void)
                 return ERR_PTR(-ENOMEM);
 
         /* Alloc aibv & callback space */
-        zdev->irq_map = kmem_cache_alloc(zdev_irq_cache, GFP_KERNEL);
+        zdev->irq_map = kmem_cache_zalloc(zdev_irq_cache, GFP_KERNEL);
         if (!zdev->irq_map)
                 goto error;
-        memset(zdev->irq_map, 0, sizeof(*zdev->irq_map));
         WARN_ON((u64) zdev->irq_map & 0xff);
         return zdev;