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| /linux/drivers/gpu/drm/exynos/ |
| H A D | exynos_mixer.c | diff 1261255531088208daeca818e2b486030b5339e5 Mon Sep 26 02:31:00 CEST 2022 Nathan Huckleberry <nhuck@google.com> drm/exynos: Fix return type for mixer_mode_valid and hdmi_mode_valid
The field mode_valid in exynos_drm_crtc_ops is expected to be of type enum
drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
const struct drm_display_mode *mode);
Likewise for mode_valid in drm_connector_helper_funcs.
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of mixer_mode_valid and hdmi_mode_valid should be changed
from int to enum drm_mode_status.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://protect2.fireeye.com/v1/url?k=3e644738-5fef521d-3e65cc77-
74fe485cbff6-36ad29bf912d3c9f&q=1&e=5cc06174-77dd-4abd-ab50-
155da5711aa3&u=https%3A%2F%2Fgithub.com%2FClangBuiltLinux%2Flinux%2Fissues%2F
1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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