diff options
| author | Ben Skeggs | 2013-11-14 08:31:26 +1000 |
|---|---|---|
| committer | Ben Skeggs | 2013-11-14 14:57:02 +1000 |
| commit | 35c336707f51f6336c9cb8a60b6f1aa5a3099ad7 (patch) | |
| tree | 5739c0814cb5f96352b3243a339aff0a4abf4c73 /drivers/gpu | |
| parent | 09dacc7bb0c2f32427d926844fca7d5fecec005c (diff) | |
drm/nouveau/pwr: fix missing mutex unlock in a failure path
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/pwr/base.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c b/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c index 9908f1f05a00..d4fd3bc9c66f 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c @@ -32,6 +32,11 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2], struct nouveau_subdev *subdev = nv_subdev(ppwr); u32 addr; + /* wait for a free slot in the fifo */ + addr = nv_rd32(ppwr, 0x10a4a0); + if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8)) + return -EBUSY; + /* we currently only support a single process at a time waiting * on a synchronous reply, take the PPWR mutex and tell the * receive handler what we're waiting for @@ -42,11 +47,6 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2], ppwr->recv.process = process; } - /* wait for a free slot in the fifo */ - addr = nv_rd32(ppwr, 0x10a4a0); - if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8)) - return -EBUSY; - /* acquire data segment access */ do { nv_wr32(ppwr, 0x10a580, 0x00000001); |