Re: [PATCH v3] ARM: imx: fix error handling in ipu device registration

[Russell King - ARM Linux]

On Sun, May 18, 2014 at 01:08:36AM +0300, Dan Carpenter wrote:
> Let's look at that error handling again.
> 
> err:  <-- the name is not descriptive.  the location is bad.
> 		kfree(pdev->dev.dma_mask);  <- null dereference.
> 		platform_device_put(pdev);  <- ok
> 		return ERR_PTR(-ENODEV);    <- should be "return ERR_PTR(ret);"
> 
> 3 out of 4 of the lines are bad.

2 out of 4.  kfree(NULL) is perfectly legal.

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