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

Pull GPIO changes from Linus Walleij:
 "So this is the LW GPIO patch stack for v3.7:
   - refactoring from Thierry Redding at Arnd Bergmann's request to use
     the seq_file iterator interface in gpiolib.
   - A new driver for Avionic Design's N-bit GPIO expander.
   - Two instances of mutexes replaced by spinlocks from Axel Lin to
     code that is supposed to be fastpath compliant.
   - IRQ demuxer and gpio_to_irq() support for pcf857x by Kuninori
     Morimoto.
   - Dynamic GPIO numbers, device tree support, daisy chaining and some
     other fixes for the 74x164 driver by Maxime Ripard.
   - IRQ domain and device tree support for the tc3589x driver by Lee
     Jones.
   - Some conversion to use managed resources devm_* code.
   - Some instances of clk_prepare() or clk_prepare_enable() added to
     support the new, stricter common clock framework.
   - Some for_each_set_bit() simplifications.
   - Then a lot of fixes as we fixed up all of the above tripping over
     our own shoelaces and that kind of thing."

* tag 'gpio-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (34 commits)
  gpio: pcf857x: select IRQ_DOMAIN
  gpio: Document device_node's det_debounce
  gpio-lpc32xx: Add GPI_28
  gpio: adnp: dt: Reference generic interrupt binding
  gpio: Add Avionic Design N-bit GPIO expander support
  gpio: pxa: using for_each_set_bit to simplify the code
  gpio_msm: using for_each_set_bit to simplify the code
  gpio: Enable the tc3298x GPIO expander driver for Device Tree
  gpio: Provide the tc3589x GPIO expander driver with an IRQ domain
  ARM: shmobile: kzm9g: use gpio-keys instead of gpio-keys-polled
  gpio: pcf857x: fixup smatch WARNING
  gpio: 74x164: Add support for the daisy-chaining
  gpio: 74x164: dts: Add documentation for the dt binding
  dt: Fix incorrect reference in gpio-led documentation
  gpio: 74x164: Add device tree support
  gpio: 74x164: Use dynamic gpio number assignment if no pdata is present
  gpio: 74x164: Use devm_kzalloc
  gpio: 74x164: Use module_spi_driver boiler plate function
  gpio: sx150x: Use irq_data_get_irq_chip_data() at appropriate places
  gpio: em: Use irq_data_get_irq_chip_data() at appropriate places
  ...

1 files changed, 3 insertions, 18 deletions

diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
index 2738cc44d636..0ab700046a23 100644
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ b/drivers/gpio/gpio-mc9s08dz60.c
@@ -91,10 +91,9 @@ static int mc9s08dz60_direction_output(struct gpio_chip *gc,
 static int mc9s08dz60_probe(struct i2c_client *client,
 			    const struct i2c_device_id *id)
 {
-	int ret = 0;
 	struct mc9s08dz60 *mc9s;
 
-	mc9s = kzalloc(sizeof(*mc9s), GFP_KERNEL);
+	mc9s = devm_kzalloc(&client->dev, sizeof(*mc9s), GFP_KERNEL);
 	if (!mc9s)
 		return -ENOMEM;
 
@@ -110,30 +109,16 @@ static int mc9s08dz60_probe(struct i2c_client *client,
 	mc9s->client = client;
 	i2c_set_clientdata(client, mc9s);
 
-	ret = gpiochip_add(&mc9s->chip);
-	if (ret)
-		goto error;
-
-	return 0;
-
- error:
-	kfree(mc9s);
-	return ret;
+	return gpiochip_add(&mc9s->chip);
 }
 
 static int mc9s08dz60_remove(struct i2c_client *client)
 {
 	struct mc9s08dz60 *mc9s;
-	int ret;
 
 	mc9s = i2c_get_clientdata(client);
 
-	ret = gpiochip_remove(&mc9s->chip);
-	if (!ret)
-		kfree(mc9s);
-
-	return ret;
-
+	return gpiochip_remove(&mc9s->chip);
 }
 
 static const struct i2c_device_id mc9s08dz60_id[] = {