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[PATCH 7/7] ath5k/phy.c: fix negative array index

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Author: Adrian Bunk <bunk@xxxxxxxxxx>

This patch fixes a negative array index spotted by the Coverity checker.

Changes-licensed-under: ISC

Acked-by: Nick Kossifidis <mickflemm@xxxxxxxxx>
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx>
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxxxx>
---
 drivers/net/wireless/ath5k/phy.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

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 @@ static int ath5k_hw_rf5112_rfregs(struct ath5k_hw *ah,
 			(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;
-- 
1.5.3.7

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