diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-09-09 11:40:56 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-03 21:29:00 +0100 |
| commit | 2fbdc9bd42c993a6b179a4ddb972b551644aad6e (patch) | |
| tree | f548d7481225963b38354359f4339cdca3e21b77 /drivers/media | |
| parent | [media] V4L: mt9m001, mt9v022: use internally cached pixel code (diff) | |
| download | linux-2fbdc9bd42c993a6b179a4ddb972b551644aad6e.tar.xz linux-2fbdc9bd42c993a6b179a4ddb972b551644aad6e.zip | |
[media] V4L: sh_mobile_csi2: fix unbalanced pm_runtime_put()
If the sh_mobile_csi2 driver didn't attach to a client, normally, because
the respective device connects to the SoC over the parallel CEU interface
and doesn't use the CSI-2 controller, it also shouldn't call
pm_runtime_put() on attempted disconnect.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/sh_mobile_csi2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/sh_mobile_csi2.c b/drivers/media/video/sh_mobile_csi2.c index 91c680a72849..37706eb81f25 100644 --- a/drivers/media/video/sh_mobile_csi2.c +++ b/drivers/media/video/sh_mobile_csi2.c @@ -208,6 +208,9 @@ static int sh_csi2_client_connect(struct sh_csi2 *priv) unsigned long common_flags, csi2_flags; int i, ret; + if (priv->client) + return -EBUSY; + for (i = 0; i < pdata->num_clients; i++) if (&pdata->clients[i].pdev->dev == icd->pdev) break; @@ -262,6 +265,9 @@ static int sh_csi2_client_connect(struct sh_csi2 *priv) static void sh_csi2_client_disconnect(struct sh_csi2 *priv) { + if (!priv->client) + return; + priv->client = NULL; pm_runtime_put(v4l2_get_subdevdata(&priv->subdev)); |