From: Fuqian Huang Date: Wed, 3 Jul 2019 16:32:24 +0000 (+0800) Subject: ASoC: wm0010: Use kmemdup rather than duplicating its implementation X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c01db8b00d35d398fa8264d8d0d2031e8d512318;p=linux.git ASoC: wm0010: Use kmemdup rather than duplicating its implementation kmemdup is introduced to duplicate a region of memory in a neat way. Rather than kmalloc/kzalloc + memcpy, which the programmer needs to write the size twice (sometimes lead to mistakes), kmemdup improves readability, leads to smaller code and also reduce the chances of mistakes. Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy. Signed-off-by: Fuqian Huang Acked-by: Richard Fitzgerald Link: https://lore.kernel.org/r/20190703163224.1029-1-huangfq.daxian@gmail.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c index fbcee21736e85..2f2b2f5d55e44 100644 --- a/sound/soc/codecs/wm0010.c +++ b/sound/soc/codecs/wm0010.c @@ -515,7 +515,7 @@ static int wm0010_stage2_load(struct snd_soc_component *component) dev_dbg(component->dev, "Downloading %zu byte stage 2 loader\n", fw->size); /* Copy to local buffer first as vmalloc causes problems for dma */ - img = kzalloc(fw->size, GFP_KERNEL | GFP_DMA); + img = kmemdup(&fw->data[0], fw->size, GFP_KERNEL | GFP_DMA); if (!img) { ret = -ENOMEM; goto abort2; @@ -527,8 +527,6 @@ static int wm0010_stage2_load(struct snd_soc_component *component) goto abort1; } - memcpy(img, &fw->data[0], fw->size); - spi_message_init(&m); memset(&t, 0, sizeof(t)); t.rx_buf = out;