From: Andrzej Hajda <a.hajda@samsung.com>
Date: Fri, 7 Aug 2015 07:59:11 +0000 (+0200)
Subject: powerpc/nvram: use kmemdup rather than duplicating its implementation
X-Git-Tag: v4.14-rc1~4767^2~26
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fc9e9cbf4e48f28525edd27e285820988f1a54b1;p=platform%2Fkernel%2Flinux-rpi.git

powerpc/nvram: use kmemdup rather than duplicating its implementation

The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 1e703f8..6f6597b3 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -541,10 +541,9 @@ static ssize_t nvram_pstore_read(u64 *id, enum pstore_type_id *type,
 			time->tv_sec = be64_to_cpu(oops_hdr->timestamp);
 			time->tv_nsec = 0;
 		}
-		*buf = kmalloc(length, GFP_KERNEL);
+		*buf = kmemdup(buff + hdr_size, length, GFP_KERNEL);
 		if (*buf == NULL)
 			return -ENOMEM;
-		memcpy(*buf, buff + hdr_size, length);
 		kfree(buff);
 
 		if (err_type == ERR_TYPE_KERNEL_PANIC_GZ)