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| author | Al Cooper <alcooperx@gmail.com> | 2014-09-11 10:55:49 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-11 21:23:52 (GMT) |
| commit | 0eda06c7c17ae48d7db69beef57f6e2b20bc3c72 (patch) | |
| tree | ae5715957fb0882c90812d05dbe4f874bb5ebd1d /net/core | |
| parent | c207e7c50f31113c24a9f536fcab1e8a256985d7 (diff) | |
| download | linux-0eda06c7c17ae48d7db69beef57f6e2b20bc3c72.tar.xz | |
usb: xhci: Fix OOPS in xhci error handling code
The xhci driver will OOPS on resume from S2/S3 if dma_alloc_coherent()
is out of memory. This is a result of two things:
1. xhci_mem_cleanup() in xhci-mem.c free's xhci->lpm_command if
it's not NULL, but doesn't set it to NULL after the free.
2. xhci_mem_cleanup() is called twice on resume, once for normal
restart and once from xhci_mem_init() if dma_alloc_coherent() fails,
resulting in a free of xhci->lpm_command that has already been freed.
The fix is to set xhci->lpm_command to NULL after freeing it.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions