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[media] r820t: Don't put it in standby if not initialized yet

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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>
This commit is contained in:
Mauro Carvalho Chehab 2013-04-11 13:25:10 -03:00
parent 4176e7ea88
commit 064fd169c5
1 changed files with 4 additions and 0 deletions
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4
drivers/media/tuners/r820t.c
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@ -1298,6 +1298,10 @@ static int r820t_standby(struct r820t_priv *priv)
{ {
int rc; 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); rc = r820t_write_reg(priv, 0x06, 0xb1);
if (rc < 0) if (rc < 0)
return rc; return rc;