diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-05-02 03:44:18 (GMT) |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-07-21 06:48:58 (GMT) |
| commit | 36cd7444c044806cd2a4e450a8385597221d5d25 (patch) | |
| tree | f10068f47dd96af9ed84bdb2adeff950a4e601d1 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 44905a27dd01f2bddd96664d0ab7da43a07f4d5a (diff) | |
| download | linux-36cd7444c044806cd2a4e450a8385597221d5d25.tar.xz | |
drm/i915: check connector->encoder before using it.
DP MST will need connectors that aren't connected to specific
encoders, add some checks in advance to avoid oopses.
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 4a5b0f8..f27daf7 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2209,13 +2209,15 @@ static void intel_connector_info(struct seq_file *m, seq_printf(m, "\tCEA rev: %d\n", connector->display_info.cea_rev); } - if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT || - intel_encoder->type == INTEL_OUTPUT_EDP) - intel_dp_info(m, intel_connector); - else if (intel_encoder->type == INTEL_OUTPUT_HDMI) - intel_hdmi_info(m, intel_connector); - else if (intel_encoder->type == INTEL_OUTPUT_LVDS) - intel_lvds_info(m, intel_connector); + if (intel_encoder) { + if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT || + intel_encoder->type == INTEL_OUTPUT_EDP) + intel_dp_info(m, intel_connector); + else if (intel_encoder->type == INTEL_OUTPUT_HDMI) + intel_hdmi_info(m, intel_connector); + else if (intel_encoder->type == INTEL_OUTPUT_LVDS) + intel_lvds_info(m, intel_connector); + } seq_printf(m, "\tmodes:\n"); list_for_each_entry(mode, &connector->modes, head) |