sh: remove call to memset after dma_alloc_coherent

Chen Zhou · Rich Felker · commit 2202d81b098e · 2020-08-14T22:05:03.000-04:00
Function dma_alloc_coherent use in buf already zeroes out memory,
so memset is not needed.

Signed-off-by: Chen Zhou &lt;chenzhou10@huawei.com&gt;
Signed-off-by: Rich Felker &lt;dalias@libc.org&gt;
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
@@ -57,8 +57,6 @@ int __init platform_resource_setup_memory(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
-	memset(buf, 0, memsize);
-
 	r->flags = IORESOURCE_MEM;
 	r->start = dma_handle;
 	r->end = r->start + memsize - 1;

Original file line number	Diff line number	Diff line change
`@@ -57,8 +57,6 @@ int __init platform_resource_setup_memory(struct platform_device *pdev,`
`57`	`57`	`return -ENOMEM;`
`58`	`58`	`}`
`59`	`59`
`60`		`- memset(buf, 0, memsize);`
`61`		`-`
`62`	`60`	`r->flags = IORESOURCE_MEM;`
`63`	`61`	`r->start = dma_handle;`
`64`	`62`	`r->end = r->start + memsize - 1;`