[PATCH 046/577] Staging: otus: drop redundant memset

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Julia Lawall <julia@xxxxxxx>

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/)

// <smpl>
@@
expression e1,e2,e3,e4;
@@

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

Signed-off-by: Julia Lawall <julia@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 drivers/staging/otus/wwrap.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/otus/wwrap.c b/drivers/staging/otus/wwrap.c
index a74f7ee..b02eb42 100644
--- a/drivers/staging/otus/wwrap.c
+++ b/drivers/staging/otus/wwrap.c
@@ -956,7 +956,6 @@ int zfLnxCencSendMsg(struct sock *netlink_sk, u_int8_t *msg, int len)
 	/*ÌîдÊý¾Ý±¨Ïà¹ØÐÅÏ¢*/
 	nlh = NLMSG_PUT(skb, 0, 0, WAI_K_MSG, size-sizeof(*nlh));
 	pos = NLMSG_DATA(nlh);
-	memset(pos, 0, len);
 
 	/*´«Êäµ½Óû§¿Õ¼äµÄÊý¾Ý*/
 	memcpy(pos, msg,  len);
-- 
1.7.0.3

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel

[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux