From 32f6fff47df65d25d3dedbd2953508c05225b726 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 1 Oct 2007 16:33:54 +0200 Subject: Sysace: Move IRQ handler registration to occur after FSM is initialized The FSM needs to be initialized before it is safe to call the ISR Signed-off-by: Grant Likely Signed-off-by: Jens Axboe --- drivers/block/xsysace.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'drivers/block') diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 10bb4e54f68..296d5674a3c 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -949,15 +949,6 @@ static int __devinit ace_setup(struct ace_device *ace) if (!ace->baseaddr) goto err_ioremap; - if (ace->irq != NO_IRQ) { - rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace); - if (rc) { - /* Failure - fall back to polled mode */ - dev_err(ace->dev, "request_irq failed\n"); - ace->irq = NO_IRQ; - } - } - /* * Initialize the state machine tasklet and stall timer */ @@ -1015,6 +1006,16 @@ static int __devinit ace_setup(struct ace_device *ace) val |= ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ; ace_out(ace, ACE_CTRL, val); + /* Now we can hook up the irq handler */ + if (ace->irq != NO_IRQ) { + rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace); + if (rc) { + /* Failure - fall back to polled mode */ + dev_err(ace->dev, "request_irq failed\n"); + ace->irq = NO_IRQ; + } + } + /* Print the identification */ dev_info(ace->dev, "Xilinx SystemACE revision %i.%i.%i\n", (version >> 12) & 0xf, (version >> 8) & 0x0f, version & 0xff); @@ -1035,8 +1036,6 @@ static int __devinit ace_setup(struct ace_device *ace) blk_cleanup_queue(ace->queue); err_blk_initq: iounmap(ace->baseaddr); - if (ace->irq != NO_IRQ) - free_irq(ace->irq, ace); err_ioremap: dev_info(ace->dev, "xsysace: error initializing device at 0x%lx\n", ace->physaddr); -- cgit v1.2.3