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drivers/pci: add error handle for pci_alloc_bus/device() 

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
This commit is contained in:
Bowen Wang 2024-05-29 13:55:00 +08:00 committed by Xiang Xiao
parent e8f6b1e695
commit fd182dad64
1 changed files with 13 additions and 0 deletions
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13
drivers/pci/pci.c
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@ -556,6 +556,10 @@ static FAR struct pci_bus_s *pci_alloc_bus(void)
FAR struct pci_bus_s *bus; FAR struct pci_bus_s *bus;
bus = kmm_zalloc(sizeof(*bus)); bus = kmm_zalloc(sizeof(*bus));
if (bus == NULL)
{
return NULL;
}
list_initialize(&bus->node); list_initialize(&bus->node);
list_initialize(&bus->children); list_initialize(&bus->children);
@ -580,6 +584,10 @@ static FAR struct pci_device_s *pci_alloc_device(void)
FAR struct pci_device_s *dev; FAR struct pci_device_s *dev;
dev = kmm_zalloc(sizeof(*dev)); dev = kmm_zalloc(sizeof(*dev));
if (dev == NULL)
{
return NULL;
}
list_initialize(&dev->node); list_initialize(&dev->node);
list_initialize(&dev->bus_list); list_initialize(&dev->bus_list);
@ -2069,6 +2077,11 @@ int pci_register_controller(FAR struct pci_controller_s *ctrl)
} }
bus = pci_alloc_bus(); bus = pci_alloc_bus();
if (bus == NULL)
{
return -ENOMEM;
}
bus->ctrl = ctrl; bus->ctrl = ctrl;
ctrl->bus = bus; ctrl->bus = bus;