[PATCH v2] usb: gadget: aspeed_udc: Add check for dma_alloc_coherent

[Greg KH]

On Wed, Dec 14, 2022 at 10:54:14AM +0800, Jiasheng Jiang wrote:
> Add the check for the return value of dma_alloc_coherent in order to
> avoid NULL pointer dereference.
> 
> This flaw was found using an experimental static analysis tool we are
> developing, APP-Miner, which has not been disclosed.
> 
> The allyesconfig build using GCC 9.3.0 shows no new warning. As we
> don't have a UDC device to test with, no runtime testing was able to
> be performed.
> 
> Signed-off-by: Jiasheng Jiang <jiasheng at iscas.ac.cn>
> ---
> Changelog:
> 
> v1 -> v2:
> 
> 1. Add "goto err;" when allocation fails.

You already sent a previous v2 that differs from this one, this should
be v3, right?