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authorXenia Ragiadakou <burzalodowa@gmail.com>2013-09-09 21:03:10 +0300
committerSarah Sharp <sarah.a.sharp@linux.intel.com>2013-12-02 12:59:44 -0800
commit7e76ad431545d013911ddc744843118b43d01e89 (patch)
tree86024caea4c61eff647abda2ab7c9ea173c03fcf /drivers/usb/host
parent587194873820a4a1b2eda260ac851394095afd77 (diff)
downloadlinux-stericsson-7e76ad431545d013911ddc744843118b43d01e89.tar.gz
xhci: fix incorrect type in assignment in handle_device_notification()
This patch converts Event TRB's 3rd field, which has type le32, to CPU byteorder before using it to retrieve the Slot ID with TRB_TO_SLOT_ID macro. This bug was found using sparse. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/xhci-ring.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 1e2f3f495843..22da09388a74 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1655,7 +1655,7 @@ static void handle_device_notification(struct xhci_hcd *xhci,
u32 slot_id;
struct usb_device *udev;
- slot_id = TRB_TO_SLOT_ID(event->generic.field[3]);
+ slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->generic.field[3]));
if (!xhci->devs[slot_id]) {
xhci_warn(xhci, "Device Notification event for "
"unused slot %u\n", slot_id);