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drm/nouveau/pmu: don't print reply values if exec is false

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[ Upstream commit b1d03fc36e ]

Currently the uninitialized values in the array reply are printed out
when exec is false and nvkm_pmu_send has not updated the array. Avoid
confusion by only dumping out these values if they have been actually
updated.

Detected by CoverityScan, CID#1271291 ("Uninitialized scaler variable")
Fixes: ebb58dc2ef ("drm/nouveau/pmu: rename from pwr (no binary change)")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Colin Ian King 2018-12-19 15:29:49 +00:00 committed by Greg Kroah-Hartman
parent b03bf452b4
commit 99028d131f
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c
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@ -88,10 +88,10 @@ nvkm_memx_fini(struct nvkm_memx **pmemx, bool exec)
if (exec) {
nvkm_pmu_send(pmu, reply, PROC_MEMX, MEMX_MSG_EXEC,
memx->base, finish);
nvkm_debug(subdev, "Exec took %uns, PMU_IN %08x\n",
reply[0], reply[1]);
}
nvkm_debug(subdev, "Exec took %uns, PMU_IN %08x\n",
reply[0], reply[1]);
kfree(memx);
return 0;
}