Use memdup_user helper instead of open-coding to simplify
the code.
Signed-off-by: Kai Song <songkai01@xxxxxxxxxx>
---
drivers/staging/r8188eu/os_dep/ioctl_linux.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index 0201f6fbeb25..96a08cc5a1ed 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -1984,14 +1984,10 @@ static int rtw_wx_read32(struct net_device *dev,
padapter = (struct adapter *)rtw_netdev_priv(dev);
p = &wrqu->data;
len = p->length;
- ptmp = kmalloc(len, GFP_KERNEL);
- if (!ptmp)
- return -ENOMEM;
- if (copy_from_user(ptmp, p->pointer, len)) {
- kfree(ptmp);
- return -EFAULT;
- }
+ ptmp = memdup_user(p->pointer, len);
+ if (IS_ERR(ptmp))
+ return PTR_ERR(ptmp);
bytes = 0;
addr = 0;
--
2.27.0
