[PATCH] cpcihp_zt5550: add pci_enable_device()
Add pci_{enable,disable}_device() calls. Without pci_enable_device(),
dev->irq is garbage, and cpcihp_zt5550 relies on it.
Compiled but untested, since I don't have the hardware.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Scott Murray <scottm@somanetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/pci/hotplug/cpcihp_zt5550.c | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index e992802..790abad 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -78,11 +78,20 @@
static int zt5550_hc_config(struct pci_dev *pdev)
{
+ int ret;
+
/* Since we know that no boards exist with two HC chips, treat it as an error */
if(hc_dev) {
err("too many host controller devices?");
return -EBUSY;
}
+
+ ret = pci_enable_device(pdev);
+ if(ret) {
+ err("cannot enable %s\n", pci_name(pdev));
+ return ret;
+ }
+
hc_dev = pdev;
dbg("hc_dev = %p", hc_dev);
dbg("pci resource start %lx", pci_resource_start(hc_dev, 1));
@@ -91,7 +100,8 @@
if(!request_mem_region(pci_resource_start(hc_dev, 1),
pci_resource_len(hc_dev, 1), MY_NAME)) {
err("cannot reserve MMIO region");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto exit_disable_device;
}
hc_registers =
@@ -99,9 +109,8 @@
if(!hc_registers) {
err("cannot remap MMIO region %lx @ %lx",
pci_resource_len(hc_dev, 1), pci_resource_start(hc_dev, 1));
- release_mem_region(pci_resource_start(hc_dev, 1),
- pci_resource_len(hc_dev, 1));
- return -ENODEV;
+ ret = -ENODEV;
+ goto exit_release_region;
}
csr_hc_index = hc_registers + CSR_HCINDEX;
@@ -124,6 +133,13 @@
writeb((u8) ALL_DIRECT_INTS_MASK, csr_int_mask);
dbg("disabled timer0, timer1 and ENUM interrupts");
return 0;
+
+exit_release_region:
+ release_mem_region(pci_resource_start(hc_dev, 1),
+ pci_resource_len(hc_dev, 1));
+exit_disable_device:
+ pci_disable_device(hc_dev);
+ return ret;
}
static int zt5550_hc_cleanup(void)
@@ -134,6 +150,7 @@
iounmap(hc_registers);
release_mem_region(pci_resource_start(hc_dev, 1),
pci_resource_len(hc_dev, 1));
+ pci_disable_device(hc_dev);
return 0;
}