From 6527de6d6d25ebfae7c7572cb7a4ed768e2e20a5 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 12 Jan 2009 15:18:34 -0700 Subject: fsldma: use a valid 'device' for dma_pool_create The dmaengine sysfs implementation was fixed to support proper lifetime rules which means that the current: new_fsl_chan->dev = &new_fsl_chan->common.dev->device; ...retrieves a NULL pointer because new_fsl_chan->common.dev has not been allocated at this point. So, set new_fsl_chan->dev to a valid device. Cc: Li Yang Cc: Zhang Wei Reported-by: Ira Snyder Tested-by: Ira Snyder Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/dma/fsldma.c') diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index ca70a21afc6..748e140c5a1 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -822,7 +822,7 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev, */ WARN_ON(fdev->feature != new_fsl_chan->feature); - new_fsl_chan->dev = &new_fsl_chan->common.dev->device; + new_fsl_chan->dev = fdev->dev; new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start, new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1); -- cgit v1.2.3 From 6782dfe44acedf1e583d84e9e0d4f966d8e9befa Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 14 Jan 2009 22:32:58 -0700 Subject: 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 Acked-by: Li Yang Signed-off-by: Peter Korsgaard Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/dma/fsldma.c') diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 748e140c5a1..b1b45eb42cb 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); -- cgit v1.2.3 From 169d5f663759ec494aa74a552ce99486235e6e50 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 14 Jan 2009 22:33:31 -0700 Subject: fsldma: print correct IRQ on mpc83xx The mpc83xx variant uses a shared IRQ for all channels, so the individual channel nodes don't have an interrupt property. Fix the code to print the controller IRQ instead if there isn't any for the channel. Acked-by: Timur Tabi Acked-by: Li Yang Signed-off-by: Peter Korsgaard Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/dma/fsldma.c') diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index b1b45eb42cb..70126a60623 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -875,7 +875,8 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev, } dev_info(fdev->dev, "#%d (%s), irq %d\n", new_fsl_chan->id, - compatible, new_fsl_chan->irq); + compatible, + new_fsl_chan->irq != NO_IRQ ? new_fsl_chan->irq : fdev->irq); return 0; -- cgit v1.2.3