diff options
| author | Colin Ian King <colin.king@canonical.com> | 2016-02-24 18:32:50 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-03-07 04:28:05 +0100 |
| commit | 5e9a207547079a23c3d4ecb4bad050ba8acc3f59 (patch) | |
| tree | 5863e547ca63d319385f351b0c5d134d85f05826 | |
| parent | Merge branch 'sh-pfc-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | linux-5e9a207547079a23c3d4ecb4bad050ba8acc3f59.tar.xz linux-5e9a207547079a23c3d4ecb4bad050ba8acc3f59.zip | |
pinctrl: lpc18xx: ensure ngroups is initialized at correct place
The initialization of ngroups is occurring at the end of the
first iteration of the outer loop, which means that the
assignment pins[ngroups++] = i is potentially indexing into
a region outside of array pins because ngroups is not initialized.
Instead, initialize ngroups in the inner loop before the first
inner loop iteration.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/pinctrl/pinctrl-lpc18xx.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c index f0bebbe0682b..ed1cfa7e43dd 100644 --- a/drivers/pinctrl/pinctrl-lpc18xx.c +++ b/drivers/pinctrl/pinctrl-lpc18xx.c @@ -1170,9 +1170,8 @@ static int lpc18xx_create_group_func_map(struct device *dev, u16 pins[ARRAY_SIZE(lpc18xx_pins)]; int func, ngroups, i; - for (func = 0; func < FUNC_MAX; ngroups = 0, func++) { - - for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) { + for (func = 0; func < FUNC_MAX; func++) { + for (ngroups = 0, i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) { if (lpc18xx_valid_pin_function(i, func)) pins[ngroups++] = i; } |