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USB: xhci: Fix bug memory free after failed initialization.
authorSarah Sharp <sarah.a.sharp@linux.intel.com>
Wed, 4 Nov 2009 06:02:22 +0000 (22:02 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 18 Nov 2009 00:46:34 +0000 (16:46 -0800)
If the xHCI driver fails during the memory initialization, xhci->ir_set
may not be a valid pointer.  Check that it points to valid DMA'able memory
before writing to that address during the memory freeing process.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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