use kmemdup rather than duplicating its implementation
Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
drivers/gpu/drm/tinydrm/repaper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tinydrm/repaper.c
b/drivers/gpu/drm/tinydrm/repaper.c
index 07f45a0..54d6fe0 100644
--- a/drivers/gpu/drm/tinydrm/repaper.c
+++ b/drivers/gpu/drm/tinydrm/repaper.c
@@ -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) {
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