From: Peter Korsgaard <jacmet@sunsite.dk>
Date: Thu, 15 Jan 2009 05:32:58 +0000 (-0700)
Subject: fsldma: check for NO_IRQ in fsl_dma_chan_remove()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6782dfe44acedf1e583d84e9e0d4f966d8e9befa;p=openwrt%2Fstaging%2Fblogic.git

fsldma: check for NO_IRQ in fsl_dma_chan_remove()

There's no per-channel IRQ on mpc83xx, so only call free_irq if we have one.

Acked-by: Timur Tabi <timur@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 748e140c5a18..b1b45eb42cb2 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -890,7 +890,8 @@ err_no_reg:
 
 static void fsl_dma_chan_remove(struct fsl_dma_chan *fchan)
 {
-	free_irq(fchan->irq, fchan);
+	if (fchan->irq != NO_IRQ)
+		free_irq(fchan->irq, fchan);
 	list_del(&fchan->common.device_node);
 	iounmap(fchan->reg_base);
 	kfree(fchan);