drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure
authorYueHaibing <yuehaibing@huawei.com>
Thu, 28 Feb 2019 12:24:59 +0000 (20:24 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Apr 2019 07:15:03 +0000 (09:15 +0200)
commit19525f7b031f1018a74ed3760b81a4f0f3940fa3
treec5959fd2cbdb3888c5599f88ffce4610ed00429e
parent20afb90f730982882e65b01fb8bdfe83914339c5
drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure

[ Upstream commit 909e9c9c428376e2a43d178ed4b0a2d5ba9cb7d3 ]

pm_runtime_get_sync returns negative on failure.

Fixes: eaeb9010bb4b ("drm/nouveau/debugfs: Wake up GPU before doing any reclocking")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/nouveau/nouveau_debugfs.c