From: Steven Toth Date: Sat, 31 Jul 2010 17:50:46 +0000 (-0300) Subject: [media] saa7164: generate a fixed kernel warning if the irq is 'late' X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=076031310b182ce89cea861982ff49ed6799767a;p=linux-beck.git [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 Signed-off-by: Mauro Carvalho Chehab --- 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 */