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authorSteven Toth <stoth@kernellabs.com>2010-07-31 14:50:46 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 07:54:42 -0200
commit076031310b182ce89cea861982ff49ed6799767a (patch)
tree781aec674518bbf76a4527de92b9870e0a5ad6fe /drivers/media
parenteafea210719067eee084c047503830c59ae2107b (diff)
downloadblackbird-op-linux-076031310b182ce89cea861982ff49ed6799767a.tar.gz
blackbird-op-linux-076031310b182ce89cea861982ff49ed6799767a.zip
[media] saa7164: generate a fixed kernel warning if the irq is 'late'
Now we start to see a number of patches applied that are related to debugging the driver. This patch is removed in the coming patches as you start to see the irq handler evolve as I worked through the DMA data corruption issues. Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/saa7164/saa7164-core.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c
index 591a3c101c0f..20257664b40b 100644
--- a/drivers/media/video/saa7164/saa7164-core.c
+++ b/drivers/media/video/saa7164/saa7164-core.c
@@ -267,7 +267,12 @@ static irqreturn_t saa7164_irq_encoder(struct saa7164_port *port)
return 0;
}
- /* Sore old time */
+ if (rp != ((port->last_irq_rp + 1) % 8)) {
+ printk(KERN_ERR "%s() Multiple bufs on interrupt, port %p\n",
+ __func__, port);
+ }
+
+ /* Store old time */
port->last_irq_msecs_diff = port->last_irq_msecs;
/* Collect new stats */
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