From 076031310b182ce89cea861982ff49ed6799767a Mon Sep 17 00:00:00 2001 From: Steven Toth Date: Sat, 31 Jul 2010 14:50:46 -0300 Subject: [PATCH] [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 --- drivers/media/video/saa7164/saa7164-core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c index 591a3c1..2025766 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 */ -- 2.7.4