aacraid: 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@gmail.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 4b3bb52b5108..b381b3718a98 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -635,15 +635,14 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
                         }
                 } else {
                         struct user_sgmap* usg;
-                        usg = kmalloc(actual_fibsize - sizeof(struct aac_srb)
-                          + sizeof(struct sgmap), GFP_KERNEL);
+                        usg = kmemdup(upsg,
+                                      actual_fibsize - sizeof(struct aac_srb)
+                                      + sizeof(struct sgmap), GFP_KERNEL);
                         if (!usg) {
                                 dprintk((KERN_DEBUG"aacraid: Allocation error in Raw SRB command\n"));
                                 rcode = -ENOMEM;
                                 goto cleanup;
                         }
-                        memcpy (usg, upsg, actual_fibsize - sizeof(struct aac_srb)
-                          + sizeof(struct sgmap));
                         actual_fibsize = actual_fibsize64;
 
                         for (i = 0; i < usg->count; i++) {