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drm/tinydrm: Use kmemdup rather than duplicating its implementation in repaper_spi_transfer() 

use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1543471233-159568-1-git-send-email-yuehaibing@huawei.com
This commit is contained in:
YueHaibing 2018-11-29 06:00:33 +00:00 committed by Noralf Trønnes
parent 77e9c35acd
commit 5ff75c489c
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/tinydrm/repaper.c
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@ -108,12 +108,11 @@ static int repaper_spi_transfer(struct spi_device *spi, u8 header,
/* Stack allocated tx? */
if (tx && len <= 32) {
txbuf = kmalloc(len, GFP_KERNEL);
txbuf = kmemdup(tx, len, GFP_KERNEL);
if (!txbuf) {
ret = -ENOMEM;
goto out_free;
}
memcpy(txbuf, tx, len);
}
if (rx) {