From: Hari Prasath Gujulan Elango <hgujulan@xxxxxxxxxxx>
This patch replaces the kmalloc followed by copy_from_user by the
wrapper routine memdup_user.
Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@xxxxxxxxxxx>
---
drivers/staging/wilc1000/linux_wlan.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index e92ba59..173b958 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -2459,16 +2459,10 @@ int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
size = wrq->u.data.length;
if (size && wrq->u.data.pointer) {
- buff = kmalloc(size, GFP_KERNEL);
- if (!buff) {
- s32Error = -ENOMEM;
- goto done;
- }
- if (copy_from_user
- (buff, wrq->u.data.pointer,
- wrq->u.data.length)) {
- s32Error = -EFAULT;
+ buff = memdup_user(wrq->u.data.pointer, wrq->u.data.length);
+ if (IS_ERR(buff)) {
+ s32Error = PTR_ERR(buff);
goto done;
}
--
1.9.1
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
