gpu: nvgpu: check return value of mutex_init for channel/TSG

- check return value of nvgpu_mutex_init for all the mutexes
  of a channel and TSG
- add corresponding nvgpu_mutex_destroy calls

Jira NVGPU-13

Change-Id: Iba3a5f8bc2261ec684b300dd4237ab7d22fa3630
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1317139
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
index 04d68872..a2846d2a 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
@@ -513,6 +513,7 @@ static void gk20a_remove_fifo_support(struct fifo_gk20a *f)
          */
         for (; i < f->num_channels; i++) {
                 struct channel_gk20a *c = f->channel + i;
+                struct tsg_gk20a *tsg = f->tsg + i;
 
                 /*
                  * Could race but worst that happens is we get an error message
@@ -520,6 +521,21 @@ static void gk20a_remove_fifo_support(struct fifo_gk20a *f)
                  */
                 if (c->referenceable)
                         __gk20a_channel_kill(c);
+
+                nvgpu_mutex_destroy(&tsg->event_id_list_lock);
+
+                nvgpu_mutex_destroy(&c->ioctl_lock);
+                nvgpu_mutex_destroy(&c->error_notifier_mutex);
+                nvgpu_mutex_destroy(&c->joblist.cleanup_lock);
+                nvgpu_mutex_destroy(&c->joblist.pre_alloc.read_lock);
+                nvgpu_mutex_destroy(&c->sync_lock);
+#if defined(CONFIG_GK20A_CYCLE_STATS)
+                nvgpu_mutex_destroy(&c->cyclestate.cyclestate_buffer_mutex);
+                nvgpu_mutex_destroy(&c->cs_client_mutex);
+#endif
+                nvgpu_mutex_destroy(&c->event_id_list_lock);
+                nvgpu_mutex_destroy(&c->dbg_s_lock);
+
         }
 
         vfree(f->channel);