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| author |  Mauro Carvalho Chehab <mchehab@redhat.com>
| 2013-04-11 13:25:10 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com>
| 2013-04-16 21:36:56 -0300 |
| commit | 064fd169c508ce20e35babdd82946dab7219ccc5 (patch) | |
| tree | b85fe838b2737922a31c3e760ae5b9d389b1fe95 /drivers/media/tuners/r820t.c | |
| parent | [media] r820t: avoid rewrite all regs when not needed (diff) | |
| download | linux-064fd169c508ce20e35babdd82946dab7219ccc5.tar.gz linux-064fd169c508ce20e35babdd82946dab7219ccc5.tar.bz2 linux-064fd169c508ce20e35babdd82946dab7219ccc5.zip | |
[media] r820t: Don't put it in standby if not initialized yet
r820t_standby() can be called before r820t_init().
If that happens, just do nothing.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Antti Palosaari <crope@iki.fi>
Diffstat (limited to 'drivers/media/tuners/r820t.c')
| -rw-r--r-- | drivers/media/tuners/r820t.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c index fc660f27edb3..b679a3f1fb7a 100644 --- a/drivers/media/tuners/r820t.c +++ b/drivers/media/tuners/r820t.c @@ -1298,6 +1298,10 @@ static int r820t_standby(struct r820t_priv *priv) { int rc; + /* If device was not initialized yet, don't need to standby */ + if (!priv->init_done) + return 0; + rc = r820t_write_reg(priv, 0x06, 0xb1); if (rc < 0) return rc; |