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(parent: 66aa9c5) | patch
xHCI: check enqueue pointer advance into dequeue seg
authorAndiry Xu <andiry.xu@amd.com>
Mon, 5 Mar 2012 09:49:40 +0000 (17:49 +0800)
committerSarah Sharp <sarah.a.sharp@linux.intel.com>
Tue, 13 Mar 2012 16:30:44 +0000 (09:30 -0700)
commit0ed386bb28f10815ecdffedce7be9e3e46812dce
tree7e08185fde1567ba14095f4bebe7a9c5c7fd1d36tree | snapshot
parent66aa9c5e7e8f7b644333413c16d4e9d368b5d13acommit | diff
xHCI: check enqueue pointer advance into dequeue seg

When a urb is submitted to xHCI driver, check if queueing the urb will make
the enqueue pointer advance into dequeue seg and expand the ring if it
occurs. This is to guarantee the safety of ring expansion.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
drivers/usb/host/xhci-ring.c diff | blob | history
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