linux-kernel - [PATCH] staging: comedi: dt282x: fix IRQ assignment for dev->irq.

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Date:   Fri,  6 Oct 2017 23:39:52 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     abbotti@....co.uk, hsweeten@...ionengravers.com,
        gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: comedi: dt282x: fix IRQ assignment for dev->irq.

Here, dev->irq is not assigned with irq(irq_num). comedi_legacy_detach()
is using dev->irq for release irq and dt282x_attach() is using dev->irq
for initialize comedi_subdevice.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/staging/comedi/drivers/dt282x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index d5295bb..afb7ac2 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -1057,6 +1057,8 @@ static void dt282x_alloc_dma(struct comedi_device *dev,
 	if (request_irq(irq_num, dt282x_interrupt, 0, dev->board_name, dev))
 		return;
 
+	dev->irq = irq_num;
+
 	/* DMA uses two 4K buffers with separate DMA channels */
 	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan[0], dma_chan[1],
 					   PAGE_SIZE, 0);
-- 
2.7.4