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| author | Markus Lidel <Markus.Lidel@shadowconnect.com> | 2005-08-09 23:30:57 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-10 02:59:52 +0200 |
| commit | dc9352a42c6de578c932313448257cf246b2b75f (patch) | |
| tree | cc0a26be95e1a93e675bbe40dd7528db7ed2baa1 /drivers/message | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 (diff) | |
| download | linux-dc9352a42c6de578c932313448257cf246b2b75f.tar.xz linux-dc9352a42c6de578c932313448257cf246b2b75f.zip | |
[PATCH] I2O: added pci_request_regions() before using the controller
Added pci_request_regions() before using the controller to avoid duplicate
usage of the I2O controller when the dpt_i2o driver and I2O subsystem is
loaded at the same time.
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/message')
| -rw-r--r-- | drivers/message/i2o/pci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/message/i2o/pci.c b/drivers/message/i2o/pci.c index 7a60fd7be8ad..66c03e882570 100644 --- a/drivers/message/i2o/pci.c +++ b/drivers/message/i2o/pci.c @@ -32,6 +32,8 @@ #include <linux/i2o.h> #include "core.h" +#define OSM_DESCRIPTION "I2O-subsystem" + /* PCI device id table for all I2O controllers */ static struct pci_device_id __devinitdata i2o_pci_ids[] = { {PCI_DEVICE_CLASS(PCI_CLASS_INTELLIGENT_I2O << 8, 0xffff00)}, @@ -66,6 +68,8 @@ static void i2o_pci_free(struct i2o_controller *c) if (c->base.virt) iounmap(c->base.virt); + + pci_release_regions(c->pdev); } /** @@ -84,6 +88,11 @@ 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)) { @@ -138,6 +147,7 @@ static int __devinit i2o_pci_alloc(struct i2o_controller *c) c->base.virt = ioremap_nocache(c->base.phys, c->base.len); if (!c->base.virt) { printk(KERN_ERR "%s: Unable to map controller.\n", c->name); + i2o_pci_free(c); return -ENOMEM; } |