In the path where intel_crt_detect_ddc() detects a CRT, if would return
true without freeing the edid.
Found by coverity.
Fixes: a2bd1f541f19 ("drm/i915: check whether we actually received an
edid in detect_ddc")
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # v3.6+
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_crt.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 385e29a..2bf5aca 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -499,6 +499,7 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
struct drm_i915_private *dev_priv = to_i915(crt->base.base.dev);
struct edid *edid;
struct i2c_adapter *i2c;
+ bool ret = false;
BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
@@ -515,17 +516,17 @@ 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
--
2.5.5
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