diff options
author | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 12:34:01 -0500 |
---|---|---|
committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-08-01 12:34:01 -0500 |
commit | 9454c23852ca6d7aec89fd6fd46a046c323caac3 (patch) | |
tree | 794be65345027b5adea3720a43124fee338333a5 /drivers/usb/core/hcd.c | |
parent | a04bee8285a71cdbb9076c3dc38be1f0b9a6b4b3 (diff) | |
parent | 4ef33685aa0957d771e068b60a5f3ca6b47ade1c (diff) | |
download | linux-9454c23852ca6d7aec89fd6fd46a046c323caac3.tar.bz2 |
Merge branch 'pci/msi-affinity' into next
Conflicts:
drivers/nvme/host/pci.c
Diffstat (limited to 'drivers/usb/core/hcd.c')
-rw-r--r-- | drivers/usb/core/hcd.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 34b837ae1ed7..d2e3f655c26f 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2598,26 +2598,23 @@ EXPORT_SYMBOL_GPL(usb_create_hcd); * Don't deallocate the bandwidth_mutex until the last shared usb_hcd is * deallocated. * - * Make sure to only deallocate the bandwidth_mutex when the primary HCD is - * freed. When hcd_release() is called for either hcd in a peer set - * invalidate the peer's ->shared_hcd and ->primary_hcd pointers to - * block new peering attempts + * Make sure to deallocate the bandwidth_mutex only when the last HCD is + * freed. When hcd_release() is called for either hcd in a peer set, + * invalidate the peer's ->shared_hcd and ->primary_hcd pointers. */ static void hcd_release(struct kref *kref) { struct usb_hcd *hcd = container_of (kref, struct usb_hcd, kref); mutex_lock(&usb_port_peer_mutex); - if (usb_hcd_is_primary_hcd(hcd)) { - kfree(hcd->address0_mutex); - kfree(hcd->bandwidth_mutex); - } if (hcd->shared_hcd) { struct usb_hcd *peer = hcd->shared_hcd; peer->shared_hcd = NULL; - if (peer->primary_hcd == hcd) - peer->primary_hcd = NULL; + peer->primary_hcd = NULL; + } else { + kfree(hcd->address0_mutex); + kfree(hcd->bandwidth_mutex); } mutex_unlock(&usb_port_peer_mutex); kfree(hcd); |