efi/gop: Add debug output on GOP probing

Add debug information to EFI GOP video driver probing function.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Peter Jones 2020-03-04 12:58:50 +01:00 committed by Daniel Kiper
parent c73cda3495
commit 3e8c338bfa

View file

@ -71,7 +71,10 @@ check_protocol (void)
handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL, handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL,
&graphics_output_guid, NULL, &num_handles); &graphics_output_guid, NULL, &num_handles);
if (!handles || num_handles == 0) if (!handles || num_handles == 0)
return 0; {
grub_dprintf ("video", "GOP: no handles\n");
return 0;
}
for (i = 0; i < num_handles; i++) for (i = 0; i < num_handles; i++)
{ {
@ -81,6 +84,7 @@ check_protocol (void)
grub_video_gop_iterate (check_protocol_hook, &have_usable_mode); grub_video_gop_iterate (check_protocol_hook, &have_usable_mode);
if (have_usable_mode) if (have_usable_mode)
{ {
grub_dprintf ("video", "GOP: found usable mode\n");
grub_free (handles); grub_free (handles);
return 1; return 1;
} }
@ -89,6 +93,8 @@ check_protocol (void)
gop = 0; gop = 0;
gop_handle = 0; gop_handle = 0;
grub_dprintf ("video", "GOP: no usable mode\n");
return 0; return 0;
} }