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pinctrl: amd: fix compilation warning

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3bfd44306c65 ("pinctrl: amd: Add support for additional GPIO")
created the following warning:

drivers/pinctrl/pinctrl-amd.c: In function 'amd_gpio_dbg_show':
drivers/pinctrl/pinctrl-amd.c:210:3: warning: 'pin_num' may be used uninitialized in this function [-Wmaybe-uninitialized]
   for (; i < pin_num; i++) {
   ^
drivers/pinctrl/pinctrl-amd.c:172:21: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned int bank, i, pin_num;
                     ^
Fix this by adding a guarding default case for illegal
bank numbers.

Cc: S-k Shyam-sundar <Shyam-sundar.S-k@amd.com>
Cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2017-01-03 09:18:58 +01:00
parent 3fd6d6ad73
commit 6ac4c1ad2e
1 changed files with 3 additions and 0 deletions
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3
drivers/pinctrl/pinctrl-amd.c
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@ -206,6 +206,9 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
i = 192;
pin_num = AMD_GPIO_PINS_BANK3 + i;
break;
default:
/* Illegal bank number, ignore */
continue;
}
for (; i < pin_num; i++) {
seq_printf(s, "pin%d\t", i);