Merge tag 'gpio-fixes-v3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 - Fix a potential bit wrap issue in the Timberdale driver
 - Fix up the buffer allocation size in the 74x164 driver
 - Set the value in direction_output() right in the mvebu driver
 - Return proper error codes for invalid GPIOs
 - Fix an off-mode bug for the OMAP
 - Don't initialize the mask_cach on the mvebu driver

* tag 'gpio-fixes-v3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  GPIO: mvebu-gpio: Don't initialize the mask_cache
  gpio/omap: fix off-mode bug: clear debounce settings on free/reset
  gpiolib: Don't return -EPROBE_DEFER to sysfs, or for invalid gpios
  gpio: mvebu: correctly set the value in direction_output()
  gpio-74x164: Fix buffer allocation size
  gpio-timberdale: fix a potential wrapping issue

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 5d6c71edc739..1c8d9e3380e1 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -623,9 +623,11 @@ static ssize_t export_store(struct class *class,
          */
 
         status = gpio_request(gpio, "sysfs");
-        if (status < 0)
+        if (status < 0) {
+                if (status == -EPROBE_DEFER)
+                        status = -ENODEV;
                 goto done;
-
+        }
         status = gpio_export(gpio, true);
         if (status < 0)
                 gpio_free(gpio);
@@ -1191,8 +1193,10 @@ int gpio_request(unsigned gpio, const char *label)
 
         spin_lock_irqsave(&gpio_lock, flags);
 
-        if (!gpio_is_valid(gpio))
+        if (!gpio_is_valid(gpio)) {
+                status = -EINVAL;
                 goto done;
+        }
         desc = &gpio_desc[gpio];
         chip = desc->chip;
         if (chip == NULL)