drivers/video/backlight/ltv350qv.c: fix a memory leak

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index 8010aaeb5adb4437620bd51c63604897198bd0e1..dd0e84a9bd2fd2cb0abcfe995bf2106f8f72a6a0 100644 (file)
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -239,11 +239,15 @@ static int __devinit ltv350qv_probe(struct spi_device *spi)
        lcd->spi = spi;
        lcd->power = FB_BLANK_POWERDOWN;
        lcd->buffer = kzalloc(8, GFP_KERNEL);
+       if (!lcd->buffer) {
+               ret = -ENOMEM;
+               goto out_free_lcd;
+       }
 
        ld = lcd_device_register("ltv350qv", &spi->dev, lcd, &ltv_ops);
        if (IS_ERR(ld)) {
                ret = PTR_ERR(ld);
-               goto out_free_lcd;
+               goto out_free_buffer;
        }
        lcd->ld = ld;
 
@@ -257,6 +261,8 @@ static int __devinit ltv350qv_probe(struct spi_device *spi)
 
 out_unregister:
        lcd_device_unregister(ld);
+out_free_buffer:
+       kfree(lcd->buffer);
 out_free_lcd:
        kfree(lcd);
        return ret;
@@ -268,6 +274,7 @@ static int __devexit ltv350qv_remove(struct spi_device *spi)
 
        ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
        lcd_device_unregister(lcd->ld);
+       kfree(lcd->buffer);
        kfree(lcd);
 
        return 0;