diff options
| author |   Nathan Huckleberry <nhuck@google.com> | 2022-09-13 13:55:55 -0700 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2022-09-14 10:42:41 +0200 |
| commit | b0b9408f132623dc88e78adb5282f74e4b64bb57 (patch) | |
| tree | 6d94f61fb3b91d3a9452d4502977d5790991113c /drivers/gpu/drm/rockchip/cdn-dp-core.c | |
| parent | drm/rockchip: vop2: Fix eDP/HDMI sync polarities (diff) | |
| download | linux-dev-b0b9408f132623dc88e78adb5282f74e4b64bb57.tar.xz linux-dev-b0b9408f132623dc88e78adb5282f74e4b64bb57.zip | |
drm/rockchip: Fix return type of cdn_dp_connector_mode_valid
The mode_valid field in drm_connector_helper_funcs is expected to be of
type:
enum drm_mode_status (* mode_valid) (struct drm_connector *connector,
struct drm_display_mode *mode);
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of cdn_dp_connector_mode_valid should be changed from
int to enum drm_mode_status.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220913205555.155149-1-nhuck@google.com
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/rockchip/cdn-dp-core.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index c204e9b95c1f..518ee13b1d6f 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -283,8 +283,9 @@ static int cdn_dp_connector_get_modes(struct drm_connector *connector) return ret; } -static int cdn_dp_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) +static enum drm_mode_status +cdn_dp_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) { struct cdn_dp_device *dp = connector_to_dp(connector); struct drm_display_info *display_info = &dp->connector.display_info; |