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| author | Zhang Rui <rui.zhang@intel.com> | 2010-12-06 15:04:24 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-12-14 00:04:59 -0500 |
| commit | 82069552555cf951d9ade5c1aec61dd40b0765b5 (patch) | |
| tree | 60cccea9bbd82d49dea6be1fcba5453911e12482 /drivers/acpi | |
| parent | 677bd810eedce61edf15452491781ff046b92edc (diff) | |
| download | kernel_samsung_tuna-82069552555cf951d9ade5c1aec61dd40b0765b5.zip kernel_samsung_tuna-82069552555cf951d9ade5c1aec61dd40b0765b5.tar.gz kernel_samsung_tuna-82069552555cf951d9ade5c1aec61dd40b0765b5.tar.bz2 | |
ACPI video: check cap._DDC flag before getting EDID
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>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/video.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 81766eb..177b4ddc 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1275,6 +1275,9 @@ int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, if (!video_device) continue; + if (!video_device->cap._DDC) + continue; + if (type) { switch (type) { case ACPI_VIDEO_DISPLAY_CRT: |