linux-kernel - [PATCH] mmc: host: use kzalloc instead of kmalloc and memset

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Date:   Tue, 17 Dec 2019 15:00:37 +0800
From:   Pan Zhang <zhangpan26@...wei.com>
To:     <zhangpan26@...wei.com>, <hushiyuan@...wei.com>,
        <ulf.hansson@...aro.org>, <allison@...utok.net>,
        <gregkh@...uxfoundation.org>, <tglx@...utronix.de>
CC:     <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] mmc: host: use kzalloc instead of kmalloc and memset

Signed-off-by: Pan Zhang <zhangpan26@...wei.com>
---
 drivers/mmc/host/vub300.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 6ced1b7..e893ced 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -1227,12 +1227,10 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 	size -= 1;
 	if (interrupt_size < size) {
 		u16 xfer_length = roundup_to_multiple_of_64(interrupt_size);
-		u8 *xfer_buffer = kmalloc(xfer_length, GFP_KERNEL);
+		u8 *xfer_buffer = kzalloc(xfer_length, GFP_KERNEL);
 		if (xfer_buffer) {
 			int retval;
 			memcpy(xfer_buffer, data, interrupt_size);
-			memset(xfer_buffer + interrupt_size, 0,
-			       xfer_length - interrupt_size);
 			size -= interrupt_size;
 			data += interrupt_size;
 			retval =
-- 
2.7.4