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efi/gop: Return EFI_SUCCESS if a usable GOP was found 

If we've found a usable instance of the Graphics Output Protocol
(GOP) with a framebuffer, it is possible that one of the later EFI
calls fails while checking if any support console output. In this
case status may be an EFI error code even though we found a usable
GOP.

Fix this by explicitly return EFI_SUCCESS if a usable GOP has been
located.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Cc: linux-efi@vger.kernel.org
Link: https://lkml.kernel.org/r/20191206165542.31469-4-ardb@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Arvind Sankar 2019-12-06 16:55:39 +00:00 committed by Ingo Molnar
parent 6fc3cec30d
commit dbd89c303b
1 changed files with 2 additions and 2 deletions
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4
drivers/firmware/efi/libstub/gop.c
View File

@ -198,7 +198,7 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si,
si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
return status;
return EFI_SUCCESS;
}
static efi_status_t
@ -316,7 +316,7 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si,
si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
return status;
return EFI_SUCCESS;
}
/*