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PCI: Return early on allocation failures to unindent mainline code

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On allocation failure, return early so the main body of the function
doesn't have to be indented as the body of an "if" statement.  No
functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2013-06-05 14:22:11 -06:00
parent dc087f2f6a
commit 050134864c
1 changed files with 15 additions and 14 deletions
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29
drivers/pci/probe.c
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@ -451,20 +451,21 @@ void pci_read_bridge_bases(struct pci_bus *child)
}
}
static struct pci_bus * pci_alloc_bus(void)
static struct pci_bus *pci_alloc_bus(void)
{
struct pci_bus *b;
b = kzalloc(sizeof(*b), GFP_KERNEL);
if (b) {
INIT_LIST_HEAD(&b->node);
INIT_LIST_HEAD(&b->children);
INIT_LIST_HEAD(&b->devices);
INIT_LIST_HEAD(&b->slots);
INIT_LIST_HEAD(&b->resources);
b->max_bus_speed = PCI_SPEED_UNKNOWN;
b->cur_bus_speed = PCI_SPEED_UNKNOWN;
}
if (!b)
return NULL;
INIT_LIST_HEAD(&b->node);
INIT_LIST_HEAD(&b->children);
INIT_LIST_HEAD(&b->devices);
INIT_LIST_HEAD(&b->slots);
INIT_LIST_HEAD(&b->resources);
b->max_bus_speed = PCI_SPEED_UNKNOWN;
b->cur_bus_speed = PCI_SPEED_UNKNOWN;
return b;
}
@ -485,11 +486,11 @@ static struct pci_host_bridge *pci_alloc_host_bridge(struct pci_bus *b)
struct pci_host_bridge *bridge;
bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
if (bridge) {
INIT_LIST_HEAD(&bridge->windows);
bridge->bus = b;
}
if (!bridge)
return NULL;
INIT_LIST_HEAD(&bridge->windows);
bridge->bus = b;
return bridge;
}