drm/radeon: also init GEM funcs in radeon_gem_prime_import_sg_table

Otherwise we will run into a NULL ptr deref.

Signed-off-by: Christian König <christian.koenig@amd.com>
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=212137
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.11.x

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index f09989b..3effc8c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -574,6 +574,8 @@ struct radeon_gem {
        struct list_head        objects;
 };
 
+extern const struct drm_gem_object_funcs radeon_gem_object_funcs;
+
 int radeon_gem_init(struct radeon_device *rdev);
 void radeon_gem_fini(struct radeon_device *rdev);
 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,

diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 9418269..db14a82 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -43,7 +43,7 @@ struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
 int radeon_gem_prime_pin(struct drm_gem_object *obj);
 void radeon_gem_prime_unpin(struct drm_gem_object *obj);
 
-static const struct drm_gem_object_funcs radeon_gem_object_funcs;
+const struct drm_gem_object_funcs radeon_gem_object_funcs;
 
 static void radeon_gem_object_free(struct drm_gem_object *gobj)
 {
@@ -227,7 +227,7 @@ static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
        return r;
 }
 
-static const struct drm_gem_object_funcs radeon_gem_object_funcs = {
+const struct drm_gem_object_funcs radeon_gem_object_funcs = {
        .free = radeon_gem_object_free,
        .open = radeon_gem_object_open,
        .close = radeon_gem_object_close,

diff --git a/drivers/gpu/drm/radeon/radeon_prime.c b/drivers/gpu/drm/radeon/radeon_prime.c
index ab29eb9..42a8794 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_prime.c
+++ b/drivers/gpu/drm/radeon/radeon_prime.c
@@ -56,6 +56,8 @@ struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
        if (ret)
                return ERR_PTR(ret);
 
+       bo->tbo.base.funcs = &radeon_gem_object_funcs;
+
        mutex_lock(&rdev->gem.mutex);
        list_add_tail(&bo->list, &rdev->gem.objects);
        mutex_unlock(&rdev->gem.mutex);