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

[Greg KH]

On Tue, Dec 13, 2022 at 08:21:16PM +0800, Jiasheng Jiang wrote:
> Add the check for the return value of dma_alloc_coherent
> in order to avoid NULL pointer dereference.
> 
> Fixes: 055276c13205 ("usb: gadget: add Aspeed ast2600 udc driver")
> Signed-off-by: Jiasheng Jiang <jiasheng at iscas.ac.cn>

Again, please prove that you tested this and follow the requirements at:
	Documentation/process/researcher-guidelines.rst
in order for us to be able to accept your changes.

thanks,

greg k-h