From d888ea03a0a8798e5a7632d0808cd69f577b75c5 Mon Sep 17 00:00:00 2001 From: Steven Toth Date: Mon, 11 May 2009 22:16:05 -0300 Subject: [PATCH] V4L/DVB (12929): SAA7164: OOPS avoidance during interrupt handling Signed-off-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/saa7164/saa7164-core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c index 968ecd4ad495..15ea90731ba7 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. -- 2.20.1