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Dan Carpenter authored
commit 784047eb upstream. The "len" could be as low as -14 so we should check for negatives. Fixes: 9a7fe54d ("staging: r8188eu: Add source files for new driver - part 1") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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