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| author | Steven Toth <stoth@kernellabs.com> | 2009-05-11 21:16:05 -0400 |
|---|---|---|
| committer | Steven Toth <stoth@kernellabs.com> | 2009-05-11 21:16:05 -0400 |
| commit | 147479b84ed012a89cff5a4e81dc6b96cafd16b8 (patch) | |
| tree | b18d94db1e98437f443edef8bca9e853b641e892 /linux/drivers/media/video/saa7164 | |
| parent | 36ba847b7d8b77d4c03bdc46fcbb240f5d435079 (diff) | |
| download | mediapointer-dvb-s2-147479b84ed012a89cff5a4e81dc6b96cafd16b8.tar.gz mediapointer-dvb-s2-147479b84ed012a89cff5a4e81dc6b96cafd16b8.tar.bz2 | |
SAA7164: OOPS avoidance during interrupt handling
From: Steven Toth <stoth@kernellabs.com>
SAA7164: OOPS avoidance during interrupt handling
Priority: normal
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Diffstat (limited to 'linux/drivers/media/video/saa7164')
| -rw-r--r-- | linux/drivers/media/video/saa7164/saa7164-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/linux/drivers/media/video/saa7164/saa7164-core.c b/linux/drivers/media/video/saa7164/saa7164-core.c index 716b82780..bf347fb0e 100644 --- a/linux/drivers/media/video/saa7164/saa7164-core.c +++ b/linux/drivers/media/video/saa7164/saa7164-core.c @@ -161,6 +161,12 @@ 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. |