maillbox: bcm-flexrm-mailbox: Use dma_pool_zalloc()

Use dma_pool_zalloc() instead of dma_pool_alloc + memset

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index a8cf4333a68f5636ca60170da8b40100118ed0b8..8ab077ff58f4a8a58cebf7a8d3aa1a93417b088e 100644 (file)
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1268,7 +1268,7 @@ static int flexrm_startup(struct mbox_chan *chan)
        }
 
        /* Allocate completion memory */
-       ring->cmpl_base = dma_pool_alloc(ring->mbox->cmpl_pool,
+       ring->cmpl_base = dma_pool_zalloc(ring->mbox->cmpl_pool,
                                         GFP_KERNEL, &ring->cmpl_dma_base);
        if (!ring->cmpl_base) {
                dev_err(ring->mbox->dev,
@@ -1277,7 +1277,6 @@ static int flexrm_startup(struct mbox_chan *chan)
                ret = -ENOMEM;
                goto fail_free_bd_memory;
        }
-       memset(ring->cmpl_base, 0, RING_CMPL_SIZE);
 
        /* Request IRQ */
        if (ring->irq == UINT_MAX) {