mtd: gpio: Use devm_kzalloc()

devm_kzalloc() is device managed and makes cleanup simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index e789e3f..0cc1394 100644 (file)
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -259,8 +259,6 @@ static int gpio_nand_remove(struct platform_device *dev)
        if (gpio_is_valid(gpiomtd->plat.gpio_rdy))
                gpio_free(gpiomtd->plat.gpio_rdy);
 
-       kfree(gpiomtd);
-
        return 0;
 }
 
@@ -297,7 +295,7 @@ static int gpio_nand_probe(struct platform_device *dev)
        if (!res0)
                return -EINVAL;
 
-       gpiomtd = kzalloc(sizeof(*gpiomtd), GFP_KERNEL);
+       gpiomtd = devm_kzalloc(&dev->dev, sizeof(*gpiomtd), GFP_KERNEL);
        if (gpiomtd == NULL) {
                dev_err(&dev->dev, "failed to create NAND MTD\n");
                return -ENOMEM;
@@ -412,7 +410,6 @@ err_sync:
        iounmap(gpiomtd->nand_chip.IO_ADDR_R);
        release_mem_region(res0->start, resource_size(res0));
 err_map:
-       kfree(gpiomtd);
        return ret;
 }