Patch "drm/bridge: cdns-mhdp8546: Fix use of uninitialized variable" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/bridge: cdns-mhdp8546: Fix use of uninitialized variable

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-bridge-cdns-mhdp8546-fix-use-of-uninitialized-va.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 3c83794e783c4d1f52f6fb621ad41be45de5eb6e
Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Date:   Fri Nov 3 15:14:05 2023 +0200

    drm/bridge: cdns-mhdp8546: Fix use of uninitialized variable
    
    [ Upstream commit 155d6fb61270dd297f128731cd155080deee8f3a ]
    
    'ret' could be uninitialized at the end of the function, although it's
    not clear if that can happen in practice.
    
    Fixes: 6a3608eae6d3 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
    Acked-by: Maxime Ripard <mripard@xxxxxxxxxx>
    Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/20231103-uninit-fixes-v2-3-c22b2444f5f5@xxxxxxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
index fccd6fbcc257..29c04012b701 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
@@ -403,7 +403,8 @@ static int _cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp)
 
 static int _cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type)
 {
-	int ret, tries = 3;
+	int ret = -EINVAL;
+	int tries = 3;
 	u32 i;
 
 	for (i = 0; i < tries; i++) {




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