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drm_gfx: fix race condition in drm_surface_set_aspect

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This commit is contained in:
valadaa48 2020-10-09 23:54:17 -04:00
parent f38db9e77c
commit c6aaa0076b
1 changed files with 3 additions and 2 deletions
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5
gfx/drivers/drm_gfx.c
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@ -210,7 +210,8 @@ static void drm_surface_free(void *data, struct drm_surface **sp)
/* Changes surface ratio only without recreating the buffers etc. */ /* Changes surface ratio only without recreating the buffers etc. */
static void drm_surface_set_aspect(struct drm_surface *surface, float aspect) static void drm_surface_set_aspect(struct drm_surface *surface, float aspect)
{ {
surface->aspect = aspect; if (surface)
surface->aspect = aspect;
} }
static void drm_surface_setup(void *data, int src_width, int src_height, static void drm_surface_setup(void *data, int src_width, int src_height,
@ -922,7 +923,7 @@ static void drm_set_aspect_ratio (void *data, unsigned aspect_ratio_idx)
/* Here we obtain the new aspect ratio. */ /* Here we obtain the new aspect ratio. */
float new_aspect = aspectratio_lut[aspect_ratio_idx].value; float new_aspect = aspectratio_lut[aspect_ratio_idx].value;
if (_drmvars->current_aspect != new_aspect) if (_drmvars && _drmvars->current_aspect != new_aspect)
{ {
_drmvars->current_aspect = new_aspect; _drmvars->current_aspect = new_aspect;
drm_surface_set_aspect(_drmvars->main_surface, new_aspect); drm_surface_set_aspect(_drmvars->main_surface, new_aspect);