2023-11-03 13:16:19

by Tomi Valkeinen

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Subject: [PATCH v2 3/4] drm/bridge: cdns-mhdp8546: Fix use of uninitialized variable

'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")
Signed-off-by: Tomi Valkeinen <[email protected]>
---
drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
index 946212a95598..5e3b8edcf794 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++) {

--
2.34.1