ath5k/phy.c: fix negative array index
Author: Adrian Bunk <bunk@kernel.org>
This patch fixes a negative array index spotted by the Coverity checker.
Changes-licensed-under: ISC
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath5k/phy.c b/drivers/net/wireless/ath5k/phy.c
index 248c0f5..405195f 100644
--- a/drivers/net/wireless/ath5k/phy.c
+++ b/drivers/net/wireless/ath5k/phy.c
@@ -1178,6 +1178,9 @@
(channel->center_freq >= 5260 ? 1 :
(channel->center_freq > 4000 ? 0 : -1)));
+ if (obdb == -1)
+ return -EINVAL;
+
if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
ee->ee_ob[ee_mode][obdb], 3, 279, 0, true))
return -EINVAL;