Mar 09 2010

drivers/net: drop redundant memset 

Author: Julia Lawall <julia@diku.dk>

The region set by the call to memset is immediately overwritten by the
subsequent call to memcpy.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression e1,e2,e3,e4;
@@

- memset(e1,e2,e3);
  memcpy(e1,e4,e3);
// 

Signed-off-by: Julia Lawall 
Signed-off-by: David S. Miller 

---
 drivers/net/s2io.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
 
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index df70657..2eb7f8a 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -5819,10 +5819,8 @@ static void s2io_vpd_read(struct s2io_nic *nic)
 		}
 	}
 
-	if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
-		memset(nic->product_name, 0, vpd_data[1]);
+	if ((!fail) && (vpd_data[1] < VPD_STRING_LEN))
 		memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
-	}
 	kfree(vpd_data);
 	swstats->mem_freed += 256;
 }

qlambert