gpu: nvgpu: fix fault in gk20a_comptag_allocator_destroy

In gk20a_comptag_allocator_destroy, allocator->g may not be
initialized. This leads to a NULL pointer dereference when
enabling CONFIG_NVGPU_TRACK_MEM_USAGE.
Use available g parameter instead.

Bug 200352099
JIRA EVLR-1959

Change-Id: I9edda516bb88cced8e7d247261e52ba6594f3b2e
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1586504
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/mm/comptags.c b/drivers/gpu/nvgpu/common/mm/comptags.c
index 01ab646a..8f2fe90f 100644
--- a/drivers/gpu/nvgpu/common/mm/comptags.c
+++ b/drivers/gpu/nvgpu/common/mm/comptags.c
@@ -91,5 +91,5 @@ void gk20a_comptag_allocator_destroy(struct gk20a *g,
          * unnecessary here.
          */
         allocator->size = 0;
-        nvgpu_vfree(allocator->g, allocator->bitmap);
+        nvgpu_vfree(g, allocator->bitmap);
 }