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authorBjorn Helgaas <bhelgaas@google.com>2024-11-25 20:41:00 +0100
committerBjorn Helgaas <bhelgaas@google.com>2024-11-25 20:41:00 +0100
commit2d564279899028a98a854dbc78e2fdb7db4b4f00 (patch)
tree740a8870f2a06bfb6d7c8085c640a4bbc24c07f5 /drivers/pci
parentMerge branch 'pci/controller/vmd' (diff)
parenttools: PCI: Fix incorrect printf format specifiers (diff)
downloadlinux-2d564279899028a98a854dbc78e2fdb7db4b4f00.tar.xz
linux-2d564279899028a98a854dbc78e2fdb7db4b4f00.zip
Merge branch 'pci/misc'
- Reorganize kerneldoc parameter names to match order in function signature (Julia Lawall) - Remove kerneldoc return value descriptions from hotplug registration interfaces that don't return anything (Ilpo Järvinen) - Fix sysfs reset_method_store() memory leak (Todd Kjos) - Simplify pci_create_slot() (Ilpo Järvinen) - Fix incorrect printf format specifiers in pcitest (Luo Yifan) * pci/misc: tools: PCI: Fix incorrect printf format specifiers PCI: Simplify pci_create_slot() logic PCI: Fix reset_method_store() memory leak PCI: hotplug: Remove "Returns" kerneldoc from void functions PCI: hotplug: Reorganize kerneldoc parameter names
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/pci_hotplug_core.c8
-rw-r--r--drivers/pci/pci.c5
-rw-r--r--drivers/pci/slot.c20
3 files changed, 15 insertions, 18 deletions
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 058d5937d8a9..36236ac88fd5 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -388,8 +388,8 @@ static struct hotplug_slot *get_slot_from_name(const char *name)
/**
* __pci_hp_register - register a hotplug_slot with the PCI hotplug subsystem
- * @bus: bus this slot is on
* @slot: pointer to the &struct hotplug_slot to register
+ * @bus: bus this slot is on
* @devnr: device number
* @name: name registered with kobject core
* @owner: caller module owner
@@ -498,8 +498,6 @@ EXPORT_SYMBOL_GPL(pci_hp_add);
*
* The @slot must have been registered with the pci hotplug subsystem
* previously with a call to pci_hp_register().
- *
- * Returns 0 if successful, anything else for an error.
*/
void pci_hp_deregister(struct hotplug_slot *slot)
{
@@ -513,8 +511,6 @@ EXPORT_SYMBOL_GPL(pci_hp_deregister);
* @slot: pointer to the &struct hotplug_slot to unpublish
*
* Remove a hotplug slot's sysfs interface.
- *
- * Returns 0 on success or a negative int on error.
*/
void pci_hp_del(struct hotplug_slot *slot)
{
@@ -545,8 +541,6 @@ EXPORT_SYMBOL_GPL(pci_hp_del);
* the driver may no longer invoke hotplug_slot_name() to get the slot's
* unique name. The driver no longer needs to handle a ->reset_slot callback
* from this point on.
- *
- * Returns 0 on success or a negative int on error.
*/
void pci_hp_destroy(struct hotplug_slot *slot)
{
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 43c9a0e029c9..e278861684bc 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -5250,7 +5250,7 @@ static ssize_t reset_method_store(struct device *dev,
const char *buf, size_t count)
{
struct pci_dev *pdev = to_pci_dev(dev);
- char *options, *name;
+ char *options, *tmp_options, *name;
int m, n;
u8 reset_methods[PCI_NUM_RESET_METHODS] = { 0 };
@@ -5270,7 +5270,8 @@ static ssize_t reset_method_store(struct device *dev,
return -ENOMEM;
n = 0;
- while ((name = strsep(&options, " ")) != NULL) {
+ tmp_options = options;
+ while ((name = strsep(&tmp_options, " ")) != NULL) {
if (sysfs_streq(name, ""))
continue;
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index ed645c7a4e4b..36b44be0489d 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -245,12 +245,13 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
slot = get_slot(parent, slot_nr);
if (slot) {
if (hotplug) {
- if ((err = slot->hotplug ? -EBUSY : 0)
- || (err = rename_slot(slot, name))) {
- kobject_put(&slot->kobj);
- slot = NULL;
- goto err;
+ if (slot->hotplug) {
+ err = -EBUSY;
+ goto put_slot;
}
+ err = rename_slot(slot, name);
+ if (err)
+ goto put_slot;
}
goto out;
}
@@ -280,10 +281,8 @@ placeholder:
err = kobject_init_and_add(&slot->kobj, &pci_slot_ktype, NULL,
"%s", slot_name);
- if (err) {
- kobject_put(&slot->kobj);
- goto err;
- }
+ if (err)
+ goto put_slot;
down_read(&pci_bus_sem);
list_for_each_entry(dev, &parent->devices, bus_list)
@@ -298,6 +297,9 @@ out:
kfree(slot_name);
mutex_unlock(&pci_slot_mutex);
return slot;
+
+put_slot:
+ kobject_put(&slot->kobj);
err:
slot = ERR_PTR(err);
goto out;