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| author | Axel Lin <axel.lin@ingics.com> | 2014-04-15 04:54:11 +0200 |
|---|---|---|
| committer | Matthew Garrett <matthew.garrett@nebula.com> | 2014-06-09 23:39:58 +0200 |
| commit | 21a3542753a63091bc4700525e6096d76fe32f62 (patch) | |
| tree | 9aba992cb4cb5fb2118c94e76bd89c653e3c6b73 | |
| parent | Merge tag 'for-linus-3.16-merge-window' of git://git.kernel.org/pub/scm/linux... (diff) | |
| download | linux-21a3542753a63091bc4700525e6096d76fe32f62.tar.xz linux-21a3542753a63091bc4700525e6096d76fe32f62.zip | |
platform-drivers-x86: intel_pmic_gpio: Fix off-by-one valid offset range check
Only pin 0-7 support input, so the valid offset range should be 0 ~ 7.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
| -rw-r--r-- | drivers/platform/x86/intel_pmic_gpio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c index 2805988485f6..40929e4f7ad7 100644 --- a/drivers/platform/x86/intel_pmic_gpio.c +++ b/drivers/platform/x86/intel_pmic_gpio.c @@ -91,7 +91,7 @@ static void pmic_program_irqtype(int gpio, int type) static int pmic_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { - if (offset > 8) { + if (offset >= 8) { pr_err("only pin 0-7 support input\n"); return -1;/* we only have 8 GPIO can use as input */ } @@ -130,7 +130,7 @@ static int pmic_gpio_get(struct gpio_chip *chip, unsigned offset) int ret; /* we only have 8 GPIO pins we can use as input */ - if (offset > 8) + if (offset >= 8) return -EOPNOTSUPP; ret = intel_scu_ipc_ioread8(GPIO0 + offset, &r); if (ret < 0) |