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authorAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>2017-01-20 16:28:42 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-01 08:30:53 +0100
commit800a78f9e62bfd91473c306479a411cff2601f62 (patch)
tree2651e0e853c9a52bdfb5d610e12e4a7f0e0730bb
parentd79e41188a1e20cb71fab70c7a76f7b0ab3ea01c (diff)
drm/i915: Don't leak edid in intel_crt_detect_ddc()
commit c34f078675f505c4437919bb1897b1351f16a050 upstream. In the path where intel_crt_detect_ddc() detects a CRT, if would return true without freeing the edid. Fixes: a2bd1f541f19 ("drm/i915: check whether we actually received an edid in detect_ddc") Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484922525-6131-1-git-send-email-ander.conselvan.de.oliveira@intel.com (cherry picked from commit c96b63a6a7ac4bd670ec2e663793a9a31418b790) Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/i915/intel_crt.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 97d1ed20418b..63fea6a2869c 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -445,6 +445,7 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private;
struct edid *edid;
struct i2c_adapter *i2c;
+ bool ret = false;
BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
@@ -461,17 +462,17 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
*/
if (!is_digital) {
DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
- return true;
+ ret = true;
+ } else {
+ DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
}
-
- DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
} else {
DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n");
}
kfree(edid);
- return false;
+ return ret;
}
static enum drm_connector_status