Re: [PATCH] drivers/usb/gadget/inode.c: add missing kfree

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On Thu, 2 Jun 2011, Julia Lawall wrote:

> From: Julia Lawall <julia@xxxxxxx>
> 
> The label fail frees dev->buf, but kbuf hasn't yet been stored there at
> this point.

...

> Signed-off-by: Julia Lawall <julia@xxxxxxx>
> 
> ---
> I wonder if it is really correct to free dev->buf at fail in this case.
> Because it is freeing the previously allocated value of dev->buf, not the
> current one as done in subsequent cases.

I don't think it matters.  This check is probably there only for 
safety; it should not be possible for dev->buf to be non-NULL at this 
point.  You ought to be able to remove the entire

	if (dev->buf)
		goto fail;

statement with no ill effects.

Alan Stern

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