Messages in this thread Patch in this message | | | Subject | [PATCH] l4f00242t03: fix error handling in l4f00242t03_probe | From | Axel Lin <> | Date | Mon, 03 May 2010 14:42:44 +0800 |
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This patch includes below fixes for properly error handling: 1. In the case of kzalloc failure, simple return -ENOMEM instead of goto err. ( priv is NULL in this case ) 2. In the case of gpio_request fail for reset_gpio and data_enable_gpio, properly release resources by goto err and err2 respectively.
Signed-off-by: Axel Lin <axel.lin@gmail.com> --- drivers/video/backlight/l4f00242t03.c | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c index bcdb12c..a4632db 100644 --- a/drivers/video/backlight/l4f00242t03.c +++ b/drivers/video/backlight/l4f00242t03.c @@ -125,8 +125,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) if (priv == NULL) { dev_err(&spi->dev, "No memory for this device.\n"); - ret = -ENOMEM; - goto err; + return -ENOMEM; } dev_set_drvdata(&spi->dev, priv); @@ -139,7 +138,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) if (ret) { dev_err(&spi->dev, "Unable to get the lcd l4f00242t03 reset gpio.\n"); - return ret; + goto err; } ret = gpio_direction_output(pdata->reset_gpio, 1); @@ -151,7 +150,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) if (ret) { dev_err(&spi->dev, "Unable to get the lcd l4f00242t03 data en gpio.\n"); - return ret; + goto err2; } ret = gpio_direction_output(pdata->data_enable_gpio, 0); -- 1.5.4.3
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