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path: root/drivers/pci/hotplug/shpchp_hpc.c
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Diffstat (limited to 'drivers/pci/hotplug/shpchp_hpc.c')
-rw-r--r--drivers/pci/hotplug/shpchp_hpc.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index bbe450f..83a5226 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -1118,7 +1118,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
{
struct php_ctlr_state_s *php_ctlr, *p;
void *instance_id = ctrl;
- int rc, num_slots = 0;
+ int rc = -1, num_slots = 0;
u8 hp_slot;
u32 shpc_base_offset;
u32 tempdword, slot_reg, slot_config;
@@ -1184,11 +1184,15 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
- if (pci_enable_device(pdev))
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ err("%s: pci_enable_device failed\n", __FUNCTION__);
goto abort_free_ctlr;
+ }
if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) {
err("%s: cannot reserve MMIO region\n", __FUNCTION__);
+ rc = -1;
goto abort_free_ctlr;
}
@@ -1197,6 +1201,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
err("%s: cannot remap MMIO region %lx @ %lx\n", __FUNCTION__,
ctrl->mmio_size, ctrl->mmio_base);
release_mem_region(ctrl->mmio_base, ctrl->mmio_size);
+ rc = -1;
goto abort_free_ctlr;
}
dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg);
@@ -1299,8 +1304,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
*/
if (atomic_add_return(1, &shpchp_num_controllers) == 1) {
shpchp_wq = create_singlethread_workqueue("shpchpd");
- if (!shpchp_wq)
- return -ENOMEM;
+ if (!shpchp_wq) {
+ rc = -ENOMEM;
+ goto abort_free_ctlr;
+ }
}
/*
@@ -1330,8 +1337,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
/* We end up here for the many possible ways to fail this API. */
abort_free_ctlr:
+ if (php_ctlr->creg)
+ iounmap(php_ctlr->creg);
kfree(php_ctlr);
abort:
DBG_LEAVE_ROUTINE
- return -1;
+ return rc;
}
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