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gpu: nvgpu: check return value of mutex_init in ctxsw_trace_gk20a.c

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- check return value of nvgpu_mutex_init in ctxsw_trace_gk20a.c
- add corresponding nvgpu_mutex_destroy calls

Jira NVGPU-13

Change-Id: I7075c6f742dba7ad4c559fedb80a3a96e824db56
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1317134
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Navneet Kumar <navneetk@nvidia.com>
This commit is contained in:
Deepak Nibade
2017-03-08 15:17:26 +05:30
committed by mobile promotions
parent d6150fa12c
commit ce810756ba
1 changed files with 16 additions and 1 deletions
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17
drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c
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@@ -475,6 +475,7 @@ static int gk20a_ctxsw_init_devs(struct gk20a *g)
{
struct gk20a_ctxsw_trace *trace = g->ctxsw_trace;
struct gk20a_ctxsw_dev *dev = trace->devs;
int err;
int i;
for (i = 0; i < GK20A_CTXSW_TRACE_NUM_DEVS; i++) {
@@ -482,7 +483,9 @@ static int gk20a_ctxsw_init_devs(struct gk20a *g)
dev->hdr = NULL;
dev->write_enabled = false;
init_waitqueue_head(&dev->readout_wq);
nvgpu_mutex_init(&dev->write_lock);
err = nvgpu_mutex_init(&dev->write_lock);
if (err)
return err;
atomic_set(&dev->vma_ref, 0);
dev++;
}
@@ -533,9 +536,21 @@ fail:
void gk20a_ctxsw_trace_cleanup(struct gk20a *g)
{
#ifdef CONFIG_GK20A_CTXSW_TRACE
struct gk20a_ctxsw_trace *trace;
struct gk20a_ctxsw_dev *dev;
int i;
if (!g->ctxsw_trace)
return;
trace = g->ctxsw_trace;
dev = trace->devs;
for (i = 0; i < GK20A_CTXSW_TRACE_NUM_DEVS; i++) {
nvgpu_mutex_destroy(&dev->write_lock);
dev++;
}
kfree(g->ctxsw_trace);
g->ctxsw_trace = NULL;