diff mbox series

[7/8] Critical KlockWork Error - Fixes - intel_display_power.c - Possible NullPointerDereference2

Message ID 20200814024950.26830-7-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_display_power.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 7946c6af4b1e..9530f6e0b10c 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -601,6 +601,9 @@  icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
 	bool timeout_expected;
 	u32 val;
 
+	if (!dig_port) 
+	    return;
+
 	icl_tc_port_assert_ref_held(dev_priv, power_well, dig_port);
 
 	val = intel_de_read(dev_priv, DP_AUX_CH_CTL(aux_ch));