[PATCH v2] USB: Fix NULLPTR dereference when serial# is unset

[Marek Vasut]

On 1/28/25 1:30 AM, Michael Ferolito wrote:
> The current behaviour of this function will dereference a null pointer
> if the serial# environment variable is unset. This was discovered on a
> board where U-Boot did not have access to the first 256MB of ram,
> resulting in a board crash.
> In the event that U-Boot has full access to memory, it will still read
> from address 0, which is probably not optimal.
> This simple check is enough to fix it
> 
> Signed-off-by: Michael Ferolito <michaelsunn101 at gmail.com>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Heiko Schocher <hs at denx.de>
> Cc: Kyungmin Park <kyungmin.park at samsung.com>
The subject tag is "usb: gadget: g_dnl:" instead of "USB:" , with that 
fixed:

Reviewed-by: Marek Vasut <marex at denx.de>

Thanks