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gpu: nvgpu: Check return code in gp10b_get_pde0_pgsz()

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nvgpu_mem_begin() needs to have it's return code checked to
make sure that it did not fail.

Coverity defect id: 2883904
Bug 200291879

Change-Id: Ic845a73439a905997a1f871708b1f847f5b93293
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1681249
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2018-03-23 13:35:34 -07:00
committed by mobile promotions
parent c392a7270f
commit a3a00f1d94
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/nvgpu/gp10b/mm_gp10b.c
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@@ -345,7 +345,9 @@ static enum gmmu_pgsz_gk20a gp10b_get_pde0_pgsz(struct gk20a *g,
if (!pd->mem)
return pgsz;
nvgpu_mem_begin(g, pd->mem);
if (nvgpu_mem_begin(g, pd->mem))
return pgsz;
for (i = 0; i < GP10B_PDE0_ENTRY_SIZE >> 2; i++)
pde_v[i] = nvgpu_mem_rd32(g, pd->mem, pde_offset + i);
nvgpu_mem_end(g, pd->mem);