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drm: Introduce drm_connector_{get,put}()

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For consistency with other reference counting APIs in the kernel, add
drm_connector_get() and drm_connector_put() functions to reference count
connectors.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

The existing semantic patch for mode object reference count conversion
is extended for these new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-4-thierry.reding@gmail.com
This commit is contained in:
Thierry Reding
2017-02-28 15:46:39 +01:00
parent 020a218f95
commit ad09360750
9 changed files with 66 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/drm_fb_helper.c
View File

@@ -148,7 +148,7 @@ fail:
struct drm_fb_helper_connector *fb_helper_connector =
fb_helper->connector_info[i];
drm_connector_unreference(fb_helper_connector->connector);
drm_connector_put(fb_helper_connector->connector);
kfree(fb_helper_connector);
fb_helper->connector_info[i] = NULL;
@@ -185,7 +185,7 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_
if (!fb_helper_connector)
return -ENOMEM;
drm_connector_reference(connector);
drm_connector_get(connector);
fb_helper_connector->connector = connector;
fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
return 0;
@@ -211,7 +211,7 @@ int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
if (i == fb_helper->connector_count)
return -EINVAL;
fb_helper_connector = fb_helper->connector_info[i];
drm_connector_unreference(fb_helper_connector->connector);
drm_connector_put(fb_helper_connector->connector);
for (j = i + 1; j < fb_helper->connector_count; j++) {
fb_helper->connector_info[j - 1] = fb_helper->connector_info[j];
@@ -633,7 +633,7 @@ static void drm_fb_helper_modeset_release(struct drm_fb_helper *helper,
int i;
for (i = 0; i < modeset->num_connectors; i++) {
drm_connector_unreference(modeset->connectors[i]);
drm_connector_put(modeset->connectors[i]);
modeset->connectors[i] = NULL;
}
modeset->num_connectors = 0;
@@ -650,7 +650,7 @@ static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper)
int i;
for (i = 0; i < helper->connector_count; i++) {
drm_connector_unreference(helper->connector_info[i]->connector);
drm_connector_put(helper->connector_info[i]->connector);
kfree(helper->connector_info[i]);
}
kfree(helper->connector_info);
@@ -2192,7 +2192,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
fb_crtc->y = offset->y;
modeset->mode = drm_mode_duplicate(dev,
fb_crtc->desired_mode);
drm_connector_reference(connector);
drm_connector_get(connector);
modeset->connectors[modeset->num_connectors++] = connector;
modeset->fb = fb_helper->fb;
modeset->x = offset->x;