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powerpc/nvram: use kmemdup rather than duplicating its implementation

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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>
This commit is contained in:
Andrzej Hajda 2015-08-07 09:59:11 +02:00 committed by Michael Ellerman
parent 2e16acc5ee
commit fc9e9cbf4e
1 changed files with 1 additions and 2 deletions
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3
arch/powerpc/kernel/nvram_64.c
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@ -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)