diff mbox series

[5/8] Critical KlockWork Error - Fixes - intel_sdvo.c - Possible NullPointerDereference1

Message ID 20200814024950.26830-5-nischal.varide@intel.com (mailing list archive)
State New, archived
Headers show
Series [1/8] Critical KlockWork Error - Fixes - intel_cdclk.c - Possible NullPointerDereference1 | expand

Commit Message

Nischal Varide Aug. 14, 2020, 2:49 a.m. UTC 
---
 drivers/gpu/drm/i915/display/intel_sdvo.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
index 2da4388e1540..279b2be958bb 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
@@ -2505,6 +2505,9 @@  static int intel_sdvo_atomic_check(struct drm_connector *conn,
 	struct intel_sdvo_connector_state *new_state =
 		to_intel_sdvo_connector_state(new_conn_state);
 
+	if (!(new_conn_state && old_conn_state && old_state && new_state))
+	    return 0;
+
 	if (new_conn_state->crtc &&
 	    (memcmp(&old_state->tv, &new_state->tv, sizeof(old_state->tv)) ||
 	     memcmp(&old_conn_state->tv, &new_conn_state->tv, sizeof(old_conn_state->tv)))) {