From: Zhang Rui <rui.zhang@intel.com>
To: "Brown, Len" <lenb@kernel.org>
Cc: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
Matthew Garrett <mjg59@srcf.ucam.org>,
"Zhang, Rui" <rui.zhang@intel.com>
Subject: [PATCH 5/7] ACPI video: check cap._DDC flag before getting EDID
Date: Mon, 06 Dec 2010 15:04:24 +0800 [thread overview]
Message-ID: <1291619064.19296.579.camel@rui> (raw)
cap._DDC is defined but never used.
Check this flag now and don't try to get EDID for video output devices with this flag cleared.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
drivers/acpi/video.c | 3 +++
1 file changed, 3 insertions(+)
Index: linux-2.6/drivers/acpi/video.c
===================================================================
--- linux-2.6.orig/drivers/acpi/video.c
+++ linux-2.6/drivers/acpi/video.c
@@ -1275,6 +1275,9 @@ int acpi_video_get_edid(struct acpi_devi
if (!video_device)
continue;
+ if (!video_device->cap._DDC)
+ continue;
+
if (type) {
switch (type) {
case ACPI_VIDEO_DISPLAY_CRT:
next reply other threads:[~2010-12-06 7:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-06 7:04 Zhang Rui [this message]
2010-12-06 12:53 ` [PATCH 5/7] ACPI video: check cap._DDC flag before getting EDID Matthew Garrett
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=1291619064.19296.579.camel@rui \
--to=rui.zhang@intel.com \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=mjg59@srcf.ucam.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.