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authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2017-06-28 22:13:52 +0200
committerBjorn Helgaas <bhelgaas@google.com>2017-06-28 22:13:52 +0200
commitdff79b91b8f3279cbe60727368adff1f3a5ab16e (patch)
tree8aab00aa2ae23a83c028e46058db09f8ef1aec9d
parentPCI: Initialize bridge release function at bridge allocation (diff)
downloadlinux-dff79b91b8f3279cbe60727368adff1f3a5ab16e.tar.xz
linux-dff79b91b8f3279cbe60727368adff1f3a5ab16e.zip
PCI: Add pci_free_host_bridge() interface
Commit a52d1443bba1 ("PCI: Export host bridge registration interface") exported the pci_alloc_host_bridge() interface so that PCI host controllers drivers can make use of it. Introduce pci_alloc_host_bridge() kernel counterpart to free the host bridge data structures, pci_free_host_bridge(), export it and update kernel functions releasing host bridge objects allocated memory to make use of it. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--drivers/pci/probe.c12
-rw-r--r--include/linux/pci.h1
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 586d83d8be4d..cbf0d0c1b009 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -517,9 +517,7 @@ static void pci_release_host_bridge_dev(struct device *dev)
if (bridge->release_fn)
bridge->release_fn(bridge);
- pci_free_resource_list(&bridge->windows);
-
- kfree(bridge);
+ pci_free_host_bridge(bridge);
}
struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
@@ -537,6 +535,14 @@ struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
}
EXPORT_SYMBOL(pci_alloc_host_bridge);
+void pci_free_host_bridge(struct pci_host_bridge *bridge)
+{
+ pci_free_resource_list(&bridge->windows);
+
+ kfree(bridge);
+}
+EXPORT_SYMBOL(pci_free_host_bridge);
+
static const unsigned char pcix_bus_speed[] = {
PCI_SPEED_UNKNOWN, /* 0 */
PCI_SPEED_66MHz_PCIX, /* 1 */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 33c2b0b77429..9095b38c2fa3 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -458,6 +458,7 @@ static inline struct pci_host_bridge *pci_host_bridge_from_priv(void *priv)
}
struct pci_host_bridge *pci_alloc_host_bridge(size_t priv);
+void pci_free_host_bridge(struct pci_host_bridge *bridge);
int pci_register_host_bridge(struct pci_host_bridge *bridge);
struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus);