When trying to load an image from a non-existent USB key, U-Boot v2017.11 crashes on my x86 platform:
=> load usb 0:1 03000000 abc General Protection EIP: 0010:[<7b59030d>] EFLAGS: 00010286 Original EIP :[<fff4330d>] ...
This used to work in v2017.09. Testing has shown, that this bug was introduced with patch 95c5553e [efi_loader: refactor boot device and loaded_image handling].
This patch now checks if a valid "desc" is returned from blk_get_dev() and only continues when "desc" is available. Resulting in this cmd output (again):
=> load usb 0:1 03000000 abc ** Bad device usb 0 **
Signed-off-by: Stefan Roese sr@denx.de Cc: Rob Clark robdclark@gmail.com Cc: Heinrich Schuchardt xypron.glpk@gmx.de Cc: Alexander Graf agraf@suse.de Cc: Marek Vasut marex@denx.de Cc: Bin Meng bmeng.cn@gmail.com Reviewed-by: Heinrich Schuchardt xypron.glpk@gmx.de
Thanks, applied to efi-next
Alex