diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2007-10-01 16:33:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@carl.home.kernel.dk> | 2007-10-10 09:25:58 +0200 |
| commit | 32f6fff47df65d25d3dedbd2953508c05225b726 (patch) | |
| tree | 261c1f176f7d0ab59c009f54e58f20ddff1d2f73 /drivers/block/xsysace.c | |
| parent | 4a24d8610df542b6599a65b100d438df144574de (diff) | |
| download | lwn-32f6fff47df65d25d3dedbd2953508c05225b726.tar.gz lwn-32f6fff47df65d25d3dedbd2953508c05225b726.zip | |
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 <grant.likely@secretlab.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/block/xsysace.c')
| -rw-r--r-- | drivers/block/xsysace.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 10bb4e54f685..296d5674a3c1 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); |