* [PATCH] atmel: use memdup_user to simplify the code
@ 2018-06-04 10:32 YueHaibing
2018-06-27 16:06 ` Kalle Valo
0 siblings, 1 reply; 2+ messages in thread
From: YueHaibing @ 2018-06-04 10:32 UTC (permalink / raw)
To: davem, kvalo; +Cc: netdev, linux-kernel, linux-wireless, YueHaibing
use existing memdup_user() helper function instead of open-coding
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
drivers/net/wireless/atmel/atmel.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c
index d122386..30b479a 100644
--- a/drivers/net/wireless/atmel/atmel.c
+++ b/drivers/net/wireless/atmel/atmel.c
@@ -2657,14 +2657,9 @@ static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
break;
}
- if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
- rc = -ENOMEM;
- break;
- }
-
- if (copy_from_user(new_firmware, com.data, com.len)) {
- kfree(new_firmware);
- rc = -EFAULT;
+ new_firmware = memdup_user(com.data, com.len);
+ if (IS_ERR(new_firmware)) {
+ rc = PTR_ERR(new_firmware);
break;
}
--
2.7.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: atmel: use memdup_user to simplify the code
2018-06-04 10:32 [PATCH] atmel: use memdup_user to simplify the code YueHaibing
@ 2018-06-27 16:06 ` Kalle Valo
0 siblings, 0 replies; 2+ messages in thread
From: Kalle Valo @ 2018-06-27 16:06 UTC (permalink / raw)
To: YueHaibing; +Cc: davem, netdev, linux-kernel, linux-wireless, YueHaibing
YueHaibing <yuehaibing@huawei.com> wrote:
> use existing memdup_user() helper function instead of open-coding
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Patch applied to wireless-drivers-next.git, thanks.
8668f9a57c8c atmel: use memdup_user to simplify the code
--
https://patchwork.kernel.org/patch/10446299/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-06-04 10:32 [PATCH] atmel: use memdup_user to simplify the code YueHaibing
2018-06-27 16:06 ` Kalle Valo
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