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| author | Guenter Roeck <linux@roeck-us.net> | 2015-11-01 13:58:40 -0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-11-25 11:45:42 -0600 |
| commit | 64609eaab242d36e3e3b7cb81d31a028719feb74 (patch) | |
| tree | 54d8bbdcaa70a0a5bdc4e0c7d02a3c098ea02654 /drivers/pci/hotplug/pciehp_ctrl.c | |
| parent | 1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff) | |
| download | linux-64609eaab242d36e3e3b7cb81d31a028719feb74.tar.gz | |
PCI: pciehp: Always protect pciehp_disable_slot() with hotplug mutex
When called from pciehp_sysfs_disable_slot(), the call to pciehp_disable_slot() was not protected by the hotplug mutex. Hold slot->hotplug_lock while calling pciehp_disable_slot(). Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rajat Jain <rajatxjain@gmail.com>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_ctrl.c')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_ctrl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 4c8f4cde6854..880978b6d534 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -511,7 +511,9 @@ int pciehp_sysfs_disable_slot(struct slot *p_slot) case STATIC_STATE: p_slot->state = POWEROFF_STATE; mutex_unlock(&p_slot->lock); + mutex_lock(&p_slot->hotplug_lock); retval = pciehp_disable_slot(p_slot); + mutex_unlock(&p_slot->hotplug_lock); mutex_lock(&p_slot->lock); p_slot->state = STATIC_STATE; break; |