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ath5k: fix off-by-one in gpio checks 

Sanity checks against AR5K_NUM_GPIO were all broken.  This doesn't
currently cause any problems since we only use the first four gpios.

Changes-licensed-under: ISC

Reported-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bob Copeland 2009-01-01 15:01:45 -05:00 committed by John W. Linville
parent 63649b6cf0
commit 7d96920488
1 changed files with 5 additions and 5 deletions
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10
drivers/net/wireless/ath5k/gpio.c
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@ -83,7 +83,7 @@ void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state)
int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio)
{
ATH5K_TRACE(ah->ah_sc);
if (gpio > AR5K_NUM_GPIO)
if (gpio >= AR5K_NUM_GPIO)
return -EINVAL;
ath5k_hw_reg_write(ah,
@ -99,7 +99,7 @@ int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio)
int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio)
{
ATH5K_TRACE(ah->ah_sc);
if (gpio > AR5K_NUM_GPIO)
if (gpio >= AR5K_NUM_GPIO)
return -EINVAL;
ath5k_hw_reg_write(ah,
@ -115,7 +115,7 @@ int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio)
u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio)
{
ATH5K_TRACE(ah->ah_sc);
if (gpio > AR5K_NUM_GPIO)
if (gpio >= AR5K_NUM_GPIO)
return 0xffffffff;
/* GPIO input magic */
@ -131,7 +131,7 @@ int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val)
u32 data;
ATH5K_TRACE(ah->ah_sc);
if (gpio > AR5K_NUM_GPIO)
if (gpio >= AR5K_NUM_GPIO)
return -EINVAL;
/* GPIO output magic */
@ -154,7 +154,7 @@ void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
u32 data;
ATH5K_TRACE(ah->ah_sc);
if (gpio > AR5K_NUM_GPIO)
if (gpio >= AR5K_NUM_GPIO)
return;
/*