linux-kernel - [PATCH] maillbox: bcm-flexrm-mailbox: Use dma_pool

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Date:   Sat, 17 Feb 2018 15:12:22 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     jassisinghbrar@...il.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...il.com>
---
 drivers/mailbox/bcm-flexrm-mailbox.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index a8cf433..8ab077f 100644
--- 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) {
--
1.9.1