mtip32xx: fix potential crash on SEC_ERASE_UNIT
The mtip driver lifted this code from elsewhere and then added a special handling check for SEC_ERASE_UNIT. If the caller tries to do a security erase but passes no output data for the command then outbuf is not allocated and the driver duly explodes. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NSelvan Mani <smani@micron.com> Signed-off-by: NAsai Thambi S P <asamymuthupa@micron.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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