diff options
| author | Steven Toth <stoth@kernellabs.com> | 2009-05-11 22:16:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-09-19 00:14:53 -0300 |
| commit | d888ea03a0a8798e5a7632d0808cd69f577b75c5 (patch) | |
| tree | fe6564a035be474cd0a4dcc3102c38d3bfd53c42 | |
| parent | f4a6adf1e54324756917459c52ec7bfdc28d6e7f (diff) | |
V4L/DVB (12929): SAA7164: OOPS avoidance during interrupt handling
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c index 968ecd4ad49..15ea90731ba 100644 --- a/drivers/media/video/saa7164/saa7164-core.c +++ b/drivers/media/video/saa7164/saa7164-core.c @@ -123,6 +123,12 @@ static irqreturn_t saa7164_irq(int irq, void *dev_id) u32 intstat[INT_SIZE/4]; int i, handled = 0, bit; + if (dev == 0) { + printk(KERN_ERR "%s() No device specified\n", __func__); + handled = 0; + goto out; + } + /* Check that the hardware is accessable. If the status bytes are * 0xFF then the device is not accessable, the the IRQ belongs * to another driver. |