diff options
| author | Dave Airlie <airlied@redhat.com> | 2025-01-10 14:24:17 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2025-01-10 14:24:17 +1000 |
| commit | f6001870edeabf0f7bc0460303d0cdbb9f0b3bc4 (patch) | |
| tree | acda60340b486b9893d96b864617f66286a4c3c6 /drivers/gpu/drm/drm_modes.c | |
| parent | 6ec692d6a5f3ab916133e2c25fa9925862210de0 (diff) | |
| parent | 9d89551994a430b50c4fffcb1e617a057fa76e20 (diff) | |
Merge tag 'v6.13-rc6' into drm-next
This backmerges Linux 6.13-rc6 this is need for the newer pulls.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 513c04f74420..e72f855fc495 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -1286,14 +1286,11 @@ EXPORT_SYMBOL(drm_mode_set_name); */ int drm_mode_vrefresh(const struct drm_display_mode *mode) { - unsigned int num, den; + unsigned int num = 1, den = 1; if (mode->htotal == 0 || mode->vtotal == 0) return 0; - num = mode->clock; - den = mode->htotal * mode->vtotal; - if (mode->flags & DRM_MODE_FLAG_INTERLACE) num *= 2; if (mode->flags & DRM_MODE_FLAG_DBLSCAN) @@ -1301,6 +1298,12 @@ int drm_mode_vrefresh(const struct drm_display_mode *mode) if (mode->vscan > 1) den *= mode->vscan; + if (check_mul_overflow(mode->clock, num, &num)) + return 0; + + if (check_mul_overflow(mode->htotal * mode->vtotal, den, &den)) + return 0; + return DIV_ROUND_CLOSEST_ULL(mul_u32_u32(num, 1000), den); } EXPORT_SYMBOL(drm_mode_vrefresh); |