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drm: arm: malidp: Don't destroy planes manually in error handlers 

The top-level error handler calls drm_mode_config_cleanup() which will
destroy all planes. There's no need to destroy them manually in lower
error handlers.

As plane cleanup is now handled entirely by drm_mode_config_cleanup(),
we must ensure that the plane .destroy() handler frees allocated memory
for the plane object that was freed by malidp_de_planes_destroy(). Do so
by replacing the call to devm_kfree() in the .destroy() handler by
kfree(). devm_kfree() is currently a no-op as the plane memory is
allocated with kzalloc(), not devm_kzalloc().

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Laurent Pinchart 2018-01-17 23:55:29 +02:00 committed by Liviu Dudau
parent d862b2d622
commit 084ffbd7fd
4 changed files with 3 additions and 22 deletions
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10
drivers/gpu/drm/arm/malidp_crtc.c
View File

@ -531,14 +531,13 @@ int malidp_crtc_init(struct drm_device *drm)
if (!primary) {
DRM_ERROR("no primary plane found\n");
ret = -EINVAL;
goto crtc_cleanup_planes;
return -EINVAL;
}
ret = drm_crtc_init_with_planes(drm, &malidp->crtc, primary, NULL,
&malidp_crtc_funcs, NULL);
if (ret)
goto crtc_cleanup_planes;
return ret;
drm_crtc_helper_add(&malidp->crtc, &malidp_crtc_helper_funcs);
drm_mode_crtc_set_gamma_size(&malidp->crtc, MALIDP_GAMMA_LUT_SIZE);
@ -548,9 +547,4 @@ int malidp_crtc_init(struct drm_device *drm)
malidp_se_set_enh_coeffs(malidp->dev);
return 0;
crtc_cleanup_planes:
malidp_de_planes_destroy(drm);
return ret;
}

1
drivers/gpu/drm/arm/malidp_drv.c
View File

@ -278,7 +278,6 @@ static int malidp_init(struct drm_device *drm)
static void malidp_fini(struct drm_device *drm)
{
malidp_de_planes_destroy(drm);
drm_mode_config_cleanup(drm);
}

1
drivers/gpu/drm/arm/malidp_drv.h
View File

@ -60,7 +60,6 @@ struct malidp_crtc_state {
#define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
int malidp_de_planes_init(struct drm_device *drm);
void malidp_de_planes_destroy(struct drm_device *drm);
int malidp_crtc_init(struct drm_device *drm);
/* often used combination of rotational bits */

13
drivers/gpu/drm/arm/malidp_planes.c
View File

@ -64,7 +64,7 @@ static void malidp_de_plane_destroy(struct drm_plane *plane)
drm_plane_helper_disable(plane);
drm_plane_cleanup(plane);
devm_kfree(plane->dev->dev, mp);
kfree(mp);
}
/*
@ -449,18 +449,7 @@ int malidp_de_planes_init(struct drm_device *drm)
return 0;
cleanup:
malidp_de_planes_destroy(drm);
kfree(formats);
return ret;
}
void malidp_de_planes_destroy(struct drm_device *drm)
{
struct drm_plane *p, *pt;
list_for_each_entry_safe(p, pt, &drm->mode_config.plane_list, head) {
drm_plane_cleanup(p);
kfree(p);
}
}