tree fdecb985720f2ca9c283d4b0f35f87e4b477e9e8
parent 0a0c4114df4a6903bccb65b06cabb6ddc968f877
author Thomas Bogendoerfer <tsbogend@alpha.franken.de> 1206529778 +0100
committer Jens Axboe <jens.axboe@oracle.com> 1208764208 +0200

cdrom: use kmalloced buffers instead of buffers on stack

If cdrom commands are issued to a scsi drive in most cases the buffer will be
filled via dma.  This leads to bad stack corruption on non coherent platforms,
because the buffers are neither cache line aligned nor is the size a multiple
of the cache line size.  Using kmalloced buffers avoids this.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>