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From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Cc: Jani Nikula <jani.nikula@intel.com>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	Sean Paul <seanpaul@chromium.org>
Subject: [Intel-gfx] [PATCH v2] drm/i915/display: Set return value before returning in intel_hdcp*_disable()
Date: Fri, 15 Jan 2021 12:15:53 +0000
Message-ID: <20210115121553.26990-1-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20210115092034.8804-1-chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/display/intel_hdcp.c:886 _intel_hdcp_disable() error: uninitialized symbol 'ret'.
drivers/gpu/drm/i915/display/intel_hdcp.c:1951 _intel_hdcp2_disable() error: uninitialized symbol 'ret'.

For MST, it is expected to always return early before disabling the stream,
and this is not regarded as an error, so update the return value to
indicate success.

v2: Success not error.

Fixes: 2a743b7b8a8b ("drm/i915/hdcp: Configure HDCP1.4 MST steram encryption status")
Fixes: 899c8762f981 ("drm/i915/hdcp: Configure HDCP2.2 MST steram encryption status")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index db8dff2eeb0a..d696f72bf669 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -883,7 +883,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
 	 * until it disabled HDCP encryption for all connectors in MST topology.
 	 */
 	if (dig_port->num_hdcp_streams > 0)
-		return ret;
+		return 0;
 
 	hdcp->hdcp_encrypted = false;
 	intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), 0);
@@ -1948,7 +1948,7 @@ static int _intel_hdcp2_disable(struct intel_connector *connector)
 	}
 
 	if (dig_port->num_hdcp_streams > 0)
-		return ret;
+		return 0;
 
 	ret = hdcp2_disable_encryption(connector);
 
-- 
2.20.1

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  parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-15  9:20 [Intel-gfx] [PATCH] drm/i915/display: Set error " Chris Wilson
2021-01-15 10:35 ` Jani Nikula
2021-01-15 12:08   ` Gupta, Anshuman
2021-01-15 14:06     ` Gupta, Anshuman
2021-01-15 11:01 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
2021-01-15 12:15 ` Chris Wilson [this message]
2021-01-15 15:51 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-01-15 16:42 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/display: Set error value before returning in intel_hdcp*_disable() (rev2) Patchwork
2021-01-15 22:56 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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