diff options
| author | Salyzyn, Mark <mark_salyzyn@adaptec.com> | 2006-01-12 08:31:57 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2006-01-14 10:54:54 -0600 |
| commit | 9638d89a75776abc614c29cdeece0cc874ea2a4c (patch) | |
| tree | 5d7ac840f1c79e7d0fd48f5df1ba7db7567499f5 /drivers/message/i2o/pci.c | |
| parent | 560c26c8345509619c3575331b99b329b5de1054 (diff) | |
| download | blackbird-op-linux-9638d89a75776abc614c29cdeece0cc874ea2a4c.tar.gz blackbird-op-linux-9638d89a75776abc614c29cdeece0cc874ea2a4c.zip | |
[SCSI] I2O: move pci_request_regions() just behind pci_enable_device()
The problem in dpt_i2o could be the pci config space accesses it
triggers as it loads, dangerous to do if there is any I/O activity going
on in the other driver (probable if a boot driver I guess).
I approve this patch to dpt_i2o.c, and am applying it to the Adaptec
branch of the driver.
Thanks for the investigation Ryoji.
---
In linux 2.6.15, data transfer does hang when both dpt_i2o
and i2o_block drivers are loaded.
It seems that location of pci_request_regions() are wrong.
I moved it just behind pci_enable_device() like other drivers,
and it becomes fine.
Signed-off-by: Ryoji Kamei <kamei@miraclelinux.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/message/i2o/pci.c')
| -rw-r--r-- | drivers/message/i2o/pci.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/message/i2o/pci.c b/drivers/message/i2o/pci.c index c5b656cdea7c..f23aeea43f62 100644 --- a/drivers/message/i2o/pci.c +++ b/drivers/message/i2o/pci.c @@ -88,11 +88,6 @@ static int __devinit i2o_pci_alloc(struct i2o_controller *c) struct device *dev = &pdev->dev; int i; - if (pci_request_regions(pdev, OSM_DESCRIPTION)) { - printk(KERN_ERR "%s: device already claimed\n", c->name); - return -ENODEV; - } - for (i = 0; i < 6; i++) { /* Skip I/O spaces */ if (!(pci_resource_flags(pdev, i) & IORESOURCE_IO)) { @@ -319,6 +314,11 @@ static int __devinit i2o_pci_probe(struct pci_dev *pdev, return rc; } + if (pci_request_regions(pdev, OSM_DESCRIPTION)) { + printk(KERN_ERR "i2o: device already claimed\n", c->name); + return -ENODEV; + } + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { printk(KERN_WARNING "i2o: no suitable DMA found for %s\n", pci_name(pdev)); |
