[patch] ath9k_hw: min_t() casts u32 to int

Dan Carpenter
2011-10-17T07:28:23Z

The code here treats very large values of "limit" as less than
MAX_POWER_RATE because of the cast to int. We should do the compare
as u32 instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index e0c8549..f9abbb7 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2526,7 +2526,7 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
struct ath9k_channel *chan = ah->curchan;
struct ieee80211_channel *channel = chan->chan;

- reg->power_limit = min_t(int, limit, MAX_RATE_POWER);
+ reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
if (test)
channel->max_power = MAX_RATE_POWER / 2;