diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-05-10 21:21:17 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-05-11 21:02:20 +0200 |
| commit | d9739a26fbcaa11c026dd79bc310af96003f20d8 (patch) | |
| tree | 115bc6a901896eae3e846dfd3728c032d2956992 /drivers/net/wireless/atmel/atmel.c | |
| parent | airo: prevent potential underflow in airo_set_freq() (diff) | |
| download | linux-d9739a26fbcaa11c026dd79bc310af96003f20d8.tar.xz linux-d9739a26fbcaa11c026dd79bc310af96003f20d8.zip | |
atmel: potential underflow in atmel_set_freq()
Smatch complains that we cap the upper bound of "fwrq->m" but not the
lower bound. I don't know if it can actually happen but it's simple
enough to check for negatives.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/atmel/atmel.c')
| -rw-r--r-- | drivers/net/wireless/atmel/atmel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c index 8f8f37f3a00c..bf2e9a083c0c 100644 --- a/drivers/net/wireless/atmel/atmel.c +++ b/drivers/net/wireless/atmel/atmel.c @@ -2275,7 +2275,7 @@ static int atmel_set_freq(struct net_device *dev, fwrq->m = ieee80211_frequency_to_channel(f); } /* Setting by channel number */ - if ((fwrq->m > 1000) || (fwrq->e > 0)) + if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0) rc = -EOPNOTSUPP; else { int channel = fwrq->m; |