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| author | Paul Kocialkowski <paul.kocialkowski@bootlin.com> | 2020-11-10 23:04:30 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2020-11-29 19:33:32 +0300 |
| commit | aec9fe892812ed10d0bffcf309d2a8fc380d8ce6 (patch) | |
| tree | 3709f285083348e2d6b5546fe0ab3378c4f2d051 /drivers/gpu | |
| parent | aea656b0d05ec5b8ed5beb2f94c4dd42ea834e9d (diff) | |
| download | linux-aec9fe892812ed10d0bffcf309d2a8fc380d8ce6.tar.xz | |
drm/rockchip: Avoid uninitialized use of endpoint id in LVDS
In the Rockchip DRM LVDS component driver, the endpoint id provided to
drm_of_find_panel_or_bridge is grabbed from the endpoint's reg property.
However, the property may be missing in the case of a single endpoint.
Initialize the endpoint_id variable to 0 to avoid using an
uninitialized variable in that case.
Fixes: 34cc0aa25456 ("drm/rockchip: Add support for Rockchip Soc LVDS")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201110200430.1713467-1-paul.kocialkowski@bootlin.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_lvds.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c index f292c6a6e20f..41edd0a421b2 100644 --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -544,7 +544,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, struct device_node *port, *endpoint; int ret = 0, child_count = 0; const char *name; - u32 endpoint_id; + u32 endpoint_id = 0; lvds->drm_dev = drm_dev; port = of_graph_get_port_by_id(dev->of_node, 1); |