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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-23 16:17:33 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-23 17:13:51 +0100 |
| commit | cf9a2f3afc75d41a61cbc91e725b9ce0746c400a (patch) | |
| tree | cf8fe7cc483b5f301f4d691260a0f6fa6ece3f6e /drivers/gpu/drm | |
| parent | 123d5c0197d8333c3f5cb9572a0c8299dc611233 (diff) | |
| download | linux-cf9a2f3afc75d41a61cbc91e725b9ce0746c400a.tar.bz2 | |
drm/i915/sdvo: Handle unsupported GET_SUPPORTED_ENHANCEMENTS gracefully
In the event that the external chipset doesn't implement the
GET_SUPPORTED_ENHANCEMENTS commands, gracefully treat it as having no
enhancments rather than bailing.
Reported-and-tested-by: Woody Suwalski <terraluna977@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18342
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 60fcef700be6..ee73e428a84a 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2520,11 +2520,10 @@ static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo, uint16_t response; } enhancements; - if (!intel_sdvo_get_value(intel_sdvo, - SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS, - &enhancements, sizeof(enhancements))) - return false; - + enhancements.response = 0; + intel_sdvo_get_value(intel_sdvo, + SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS, + &enhancements, sizeof(enhancements)); if (enhancements.response == 0) { DRM_DEBUG_KMS("No enhancement is supported\n"); return true; |