[PATCH -next] scsi: mptfusion: Use kmemdup rather than duplicating its implementation in mpt_remove_dead_ioc_func

[YueHaibing]

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaib...@huawei.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 dc1e43a..a32d3d0 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -6001,13 +6001,12 @@ static int mpt_remove_dead_ioc_func(void *arg)
        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);