From: Dan Carpenter <error27@gmail.com>
Date: Tue, 19 Oct 2010 05:57:48 +0000 (+0200)
Subject: Staging: sst: fixups in SNDRV_SST_STREAM_DECODE
X-Git-Tag: v2.6.37-rc2~22^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9f25689a86570c30d3f101b1f9834a579bed2e5;p=pandora-kernel.git

Staging: sst: fixups in SNDRV_SST_STREAM_DECODE

This is another patch about copying data to the kernel before using it.

SNDRV_SST_STREAM_DECODE is sort of tricky because we need to do a
copy_from_user() that gives us another two pointers and we have copy
those.  Those again give us some more pointers that we have to copy.

Besides those problems, the code had a stack overflow:
-	struct snd_sst_buff_entry ibuf_temp[param->ibufs->entries],
-		obuf_temp[param->obufs->entries];
param->ibufs->entries comes from the user.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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