[PATCH v2 6/6] drm/omap: gem: Switch to gem_free_object_unlocked()

Laurent Pinchart laurent.pinchart at ideasonboard.com
Fri May 25 16:39:25 UTC 2018

From: Daniel Vetter <daniel.vetter at ffwll.ch>

The only thing that omap_gem_free_object does that might need the magic
protection of struct_mutex (of keeping all objects alive if that lock is
held, even if the last reference is gone) is the mm_list manipulation.
This is already protected by the separate omapdrm->list_lock, which
means that struct_mutex is not needed by omapdrm. We can switch to

Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Changes since v0:

- Rebased on top of struct_mutex removal and rephrased commit message
 drivers/gpu/drm/omapdrm/omap_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index 5fcf9eaf3eaf..5005ecc284d2 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -493,7 +493,7 @@ static struct drm_driver omap_drm_driver = {
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_export = omap_gem_prime_export,
 	.gem_prime_import = omap_gem_prime_import,
-	.gem_free_object = omap_gem_free_object,
+	.gem_free_object_unlocked = omap_gem_free_object,
 	.gem_vm_ops = &omap_gem_vm_ops,
 	.dumb_create = omap_gem_dumb_create,
 	.dumb_map_offset = omap_gem_dumb_map_offset,

Laurent Pinchart

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