Comments
Patch
@@ -2278,6 +2278,18 @@ intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
return true;
}
+static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
+{
+ struct drm_device *dev = intel_sdvo->base.base.dev;
+ struct drm_connector *connector, *tmp;
+
+ list_for_each_entry_safe(connector, tmp,
+ &dev->mode_config.connector_list, head) {
+ if (intel_attached_encoder(connector) == &intel_sdvo->base)
+ intel_sdvo_destroy(connector);
+ }
+}
+
static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
struct intel_sdvo_connector *intel_sdvo_connector,
int type)
@@ -2584,7 +2596,8 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
intel_sdvo->caps.output_flags) != true) {
DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
SDVO_NAME(intel_sdvo));
- goto err;
+ /* Output_setup can leave behind connectors! */
+ goto err_output;
}
/* Only enable the hotplug irq if we need it, to work around noisy
@@ -2601,12 +2614,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
/* Set the input timing to the screen. Assume always input 0. */
if (!intel_sdvo_set_target_input(intel_sdvo))
- goto err;
+ goto err_output;
if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
&intel_sdvo->pixel_clock_min,
&intel_sdvo->pixel_clock_max))
- goto err;
+ goto err_output;
DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
"clock range %dMHz - %dMHz, "
@@ -2626,6 +2639,9 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
(SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
return true;
+err_output:
+ intel_sdvo_output_cleanup(intel_sdvo);
+
err:
drm_encoder_cleanup(&intel_encoder->base);
i2c_del_adapter(&intel_sdvo->ddc);
This is a note to let you know that I have just added a patch titled drm/i915/sdvo: clean up connectors on intel_sdvo_init() to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ From 0bd16961d58541ef14d586f1b6b50a6e145b8462 Mon Sep 17 00:00:00 2001 From: Jani Nikula <jani.nikula@intel.com> Date: Mon, 12 Nov 2012 18:31:35 +0200 Subject: [PATCH] drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures commit d0ddfbd3d1346c1f481ec2289eef350cdba64b42 upstream. Any failures in intel_sdvo_init() after the intel_sdvo_setup_output() call left behind ghost connectors, attached (with a dangling pointer) to the sdvo that has been cleaned up and freed. Properly destroy any connectors attached to the encoder. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=46381 CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Tested-by: bjo@nord-west.org [danvet: added a comment to explain why we need to clean up connectors even when sdvo_output_setup fails.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/gpu/drm/i915/intel_sdvo.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) -- 1.7.9.5