gpu: nvgpu: fix vidmem regression

Ensures all vidmem mutex are init

bug 2004378

Change-Id: I2ffb1d8e99ecb269b36e5ea79d08db2021e54302
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1583196
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/mm/vidmem.c b/drivers/gpu/nvgpu/common/mm/vidmem.c
index 2fe3c492..3526fce5 100644
--- a/drivers/gpu/nvgpu/common/mm/vidmem.c
+++ b/drivers/gpu/nvgpu/common/mm/vidmem.c
@@ -355,6 +355,7 @@ int nvgpu_vidmem_init(struct mm_gk20a *mm)
         nvgpu_init_list_node(&mm->vidmem.clear_list_head);
         nvgpu_mutex_init(&mm->vidmem.clear_list_mutex);
         nvgpu_mutex_init(&mm->vidmem.clearing_thread_lock);
+        nvgpu_mutex_init(&mm->vidmem.first_clear_mutex);
         nvgpu_atomic_set(&mm->vidmem.pause_count, 0);
 
         /*