Re: [PATCH v2] efi_loader: loosen buffer parameter check in efi_file_read

On 22.07.20 09:43, Stefan Sørensen wrote:

When reading a directory, EFI_BUFFER_TOO_SMALL should be returned when the supplied buffer is too small, so a use-case is to call efi_file_read with *buffer_size=0 and buffer=NULL to obtain the needed size before doing the actual read.

So move the buffer!=NULL check to after the buffer size has been checked.

This fix allows the Redhat shim fallback to run and e.g. Fedora 32 now boots out of the box.

Signed-off-by: Stefan Sørensen stefan.sorensen@spectralink.com

Reviewed-by: Heinrich Schuchardt xypron.glpk@gmx.de