drivers/video/exynos/s6e8ax0.c: use devm_* APIs in s6e8ax0.c

devm_* APIs are device managed and make error handling and code cleanup
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/video/exynos/s6e8ax0.c b/drivers/video/exynos/s6e8ax0.c
index 05d080b63bc0..ca2602413aa4 100644
--- a/drivers/video/exynos/s6e8ax0.c
+++ b/drivers/video/exynos/s6e8ax0.c
@@ -776,7 +776,7 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
         int ret;
         u8 mtp_id[3] = {0, };
 
-        lcd = kzalloc(sizeof(struct s6e8ax0), GFP_KERNEL);
+        lcd = devm_kzalloc(&dsim_dev->dev, sizeof(struct s6e8ax0), GFP_KERNEL);
         if (!lcd) {
                 dev_err(&dsim_dev->dev, "failed to allocate s6e8ax0 structure.\n");
                 return -ENOMEM;
@@ -788,18 +788,17 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
 
         mutex_init(&lcd->lock);
 
-        ret = regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
+        ret = devm_regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
         if (ret) {
                 dev_err(lcd->dev, "Failed to get regulators: %d\n", ret);
-                goto err_lcd_register;
+                return ret;
         }
 
         lcd->ld = lcd_device_register("s6e8ax0", lcd->dev, lcd,
                         &s6e8ax0_lcd_ops);
         if (IS_ERR(lcd->ld)) {
                 dev_err(lcd->dev, "failed to register lcd ops.\n");
-                ret = PTR_ERR(lcd->ld);
-                goto err_lcd_register;
+                return PTR_ERR(lcd->ld);
         }
 
         lcd->bd = backlight_device_register("s6e8ax0-bl", lcd->dev, lcd,
@@ -838,11 +837,6 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
 
 err_backlight_register:
         lcd_device_unregister(lcd->ld);
-
-err_lcd_register:
-        regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
-        kfree(lcd);
-
         return ret;
 }