From: zhong jiang <zhongjiang@huawei.com>
To: <mchehab@kernel.org>
Cc: <crope@iki.fi>, <linux-media@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH] media: usb: Use kmemdup instead of duplicating its function.
Date: Tue, 18 Sep 2018 23:25:25 +0800 [thread overview]
Message-ID: <1537284325-61744-1-git-send-email-zhongjiang@huawei.com> (raw)
kmemdup has implemented the function that kmalloc() + memcpy().
We prefer to kmemdup rather than code opened implementation.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
drivers/media/usb/dvb-usb-v2/gl861.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/usb/dvb-usb-v2/gl861.c b/drivers/media/usb/dvb-usb-v2/gl861.c
index 0559417..80fed44 100644
--- a/drivers/media/usb/dvb-usb-v2/gl861.c
+++ b/drivers/media/usb/dvb-usb-v2/gl861.c
@@ -200,11 +200,10 @@ struct friio_config {
u8 *buf;
int ret;
- buf = kmalloc(wlen, GFP_KERNEL);
+ buf = kmemdup(wbuf, wlen, GFP_KERNEL);
if (!buf)
return -ENOMEM;
- memcpy(buf, wbuf, wlen);
ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
GL861_REQ_I2C_RAW, GL861_WRITE,
addr << (8 + 1), 0x0100, buf, wlen, 2000);
--
1.7.12.4
reply other threads:[~2018-09-18 15:37 UTC|newest]
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