linux-kernel - [PATCH] mptbase: use kmemdup

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Message-Id: <1463665851-16334-1-git-send-email-falakreyaz@gmail.com>
Date:	Thu, 19 May 2016 19:20:47 +0530
From:	Muhammad Falak R Wani <falakreyaz@...il.com>
To:	Sathya Prakash <sathya.prakash@...adcom.com>
Cc:	Chaitra P B <chaitra.basappa@...adcom.com>,
	Suganath Prabu Subramani 
	<suganath-prabu.subramani@...adcom.com>,
	MPT-FusionLinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mptbase: use kmemdup

Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@...il.com>
---
 drivers/message/fusion/mptbase.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 5537f8d..4cad96e 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -5997,13 +5997,12 @@ mpt_findImVolumes(MPT_ADAPTER *ioc)
 	if (mpt_config(ioc, &cfg) != 0)
 		goto out;
 
-	mem = kmalloc(iocpage2sz, GFP_KERNEL);
+	mem = kmemdup((u8 *)pIoc2, iocpage2sz, GFP_KERNEL);
 	if (!mem) {
 		rc = -ENOMEM;
 		goto out;
 	}
 
-	memcpy(mem, (u8 *)pIoc2, iocpage2sz);
 	ioc->raid_data.pIocPg2 = (IOCPage2_t *) mem;
 
 	mpt_read_ioc_pg_3(ioc);
-- 
1.9.1