[Intel-gfx] [PATCH v2 2/2] drm/i915/hdcp: Fix uninitialized symbol
Anshuman Gupta
anshuman.gupta at intel.com
Wed Jan 20 10:30:32 UTC 2021
Move (num_hdcp_streams > 0) condition to stream_encryption()
code block, where it actually belongs.
This fixes the static analysis error of uninitialized symbol 'ret'.
v2:
- return 0 as the return value is already checked. [Ankit]
Cc: Ramalingam C <ramalingam.c at intel.com>
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
drivers/gpu/drm/i915/display/intel_hdcp.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 581ccb038b87..ae1371c36a32 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -878,15 +878,15 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
}
drm_dbg_kms(&dev_priv->drm, "HDCP 1.4 transcoder: %s stream encryption disabled\n",
transcoder_name(hdcp->stream_transcoder));
+ /*
+ * If there are other connectors on this port using HDCP,
+ * don't disable it until it disabled HDCP encryption for
+ * all connectors in MST topology.
+ */
+ if (dig_port->num_hdcp_streams > 0)
+ return 0;
}
- /*
- * If there are other connectors on this port using HDCP, don't disable it
- * until it disabled HDCP encryption for all connectors in MST topology.
- */
- if (dig_port->num_hdcp_streams > 0)
- return ret;
-
hdcp->hdcp_encrypted = false;
intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), 0);
if (intel_de_wait_for_clear(dev_priv,
@@ -1947,10 +1947,10 @@ static int _intel_hdcp2_disable(struct intel_connector *connector)
}
drm_dbg_kms(&i915->drm, "HDCP 2.2 transcoder: %s stream encryption disabled\n",
transcoder_name(hdcp->stream_transcoder));
- }
- if (dig_port->num_hdcp_streams > 0)
- return ret;
+ if (dig_port->num_hdcp_streams > 0)
+ return 0;
+ }
ret = hdcp2_disable_encryption(connector);
--
2.26.2
More information about the Intel-gfx
mailing list