From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Arvind Sankar <nivedita@alum.mit.edu>,
Ard Biesheuvel <ardb@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>,
linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 09/62] efi/gop: Return EFI_SUCCESS if a usable GOP was found
Date: Sat, 11 Jan 2020 10:49:51 +0100 [thread overview]
Message-ID: <20200111094841.330769059@linuxfoundation.org> (raw)
In-Reply-To: <20200111094837.425430968@linuxfoundation.org>
From: Arvind Sankar <nivedita@alum.mit.edu>
[ Upstream commit dbd89c303b4420f6cdb689fd398349fc83b059dd ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/firmware/efi/libstub/gop.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c
index 16ed61c023e8..81ffda5d1e48 100644
--- a/drivers/firmware/efi/libstub/gop.c
+++ b/drivers/firmware/efi/libstub/gop.c
@@ -200,7 +200,7 @@ 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
@@ -318,7 +318,7 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si,
si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
- return status;
+ return EFI_SUCCESS;
}
/*
--
2.20.1
next prev parent reply other threads:[~2020-01-11 10:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200111094837.425430968@linuxfoundation.org>
2020-01-11 9:49 ` [PATCH 4.14 07/62] x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage Greg Kroah-Hartman
2020-01-11 9:49 ` [PATCH 4.14 08/62] efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs Greg Kroah-Hartman
2020-01-11 9:49 ` Greg Kroah-Hartman [this message]
2020-01-11 9:49 ` [PATCH 4.14 10/62] efi/gop: Fix memory leak in __gop_query32/64() Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200111094841.330769059@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=andriy.shevchenko@linux.intel.com \
--cc=ardb@kernel.org \
--cc=bhsharma@redhat.com \
--cc=linux-efi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=m.mizuma@jp.fujitsu.com \
--cc=mingo@kernel.org \
--cc=nivedita@alum.mit.edu \
--cc=sashal@kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).