From: Albert Lee <albertcc@tw.ibm.com>
Date: Mon, 6 Jun 2005 07:56:03 +0000 (+0800)
Subject: [PATCH] sg traverse fix for __atapi_pio_bytes()
X-Git-Tag: v2.6.12~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6952df035509717bdc46194b2a3d6ffb9349f267;p=pandora-kernel.git

[PATCH] sg traverse fix for __atapi_pio_bytes()

Problem:
Incorrect md5sum when using ATAPI PIO mode to verify a distro CD.

Root cause:  sg traverse problem.
In __atapi_pio_bytes(), if qc->cursg++ is increased and "goto
next_page" is executed, then sg is not updated to the new qc->cursg
and the old sg is overwritten with the new data.

Changes:
- Replace "goto next_page" with "goto next_sg" to make sg updated.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
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