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drm/fb-helper: Propagate errors from initial config failure

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Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
  Reported-by: Fengguang Wu <fengguang.wu@intel.com>

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Thierry Reding
2014-12-19 11:21:32 +01:00
committed by Daniel Vetter
parent 7119ad5f6b
commit 01934c2a69
13 changed files with 140 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/cirrus/cirrus_fbdev.c
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@@ -317,17 +317,17 @@ int cirrus_fbdev_init(struct cirrus_device *cdev)
ret = drm_fb_helper_init(cdev->dev, &gfbdev->helper,
cdev->num_crtc, CIRRUSFB_CONN_LIMIT);
if (ret) {
kfree(gfbdev);
if (ret)
return ret;
ret = drm_fb_helper_single_add_all_connectors(&gfbdev->helper);
if (ret)
return ret;
}
drm_fb_helper_single_add_all_connectors(&gfbdev->helper);
/* disable all the possible outputs/crtcs before entering KMS mode */
drm_helper_disable_unused_functions(cdev->dev);
drm_fb_helper_initial_config(&gfbdev->helper, bpp_sel);
return 0;
return drm_fb_helper_initial_config(&gfbdev->helper, bpp_sel);
}
void cirrus_fbdev_fini(struct cirrus_device *cdev)