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efi/gop: Add debug output on GOP probing

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