gpu: nvgpu: add ref counting for GPU sched ctrl

Jira VFND-1968

Change-Id: Id84c5732e312e44db3d412df5c21e429227dd7fa
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1171286
(cherry picked from commit 13a3a4355914635ed175708affef17dc8ef0b133)
Reviewed-on: http://git-master/r/1177824
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c
index af8f0f7b..3e83cd06 100644
--- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c
@@ -28,8 +28,6 @@
 #define NVGPU_TSG_MIN_TIMESLICE_US 1000
 #define NVGPU_TSG_MAX_TIMESLICE_US 50000
 
-static void gk20a_tsg_release(struct kref *ref);
-
 bool gk20a_is_channel_marked_as_tsg(struct channel_gk20a *ch)
 {
         return !(ch->tsgid == NVGPU_INVALID_TSG_ID);
@@ -449,7 +447,7 @@ int gk20a_tsg_dev_open(struct inode *inode, struct file *filp)
         return ret;
 }
 
-static void gk20a_tsg_release(struct kref *ref)
+void gk20a_tsg_release(struct kref *ref)
 {
         struct tsg_gk20a *tsg = container_of(ref, struct tsg_gk20a, refcount);
         struct gk20a *g = tsg->g;