From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 24 Jun 2008 18:03:14 +0000 (-0400)
Subject: [SCSI] erase invalid data returned by device
X-Git-Tag: v2.6.26~6^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdb2b8cab4392ce41ddfbd6773a3da3334daf836;p=pandora-kernel.git

[SCSI] erase invalid data returned by device

This patch (as1108) fixes a problem that can occur with certain USB
mass-storage devices: They return invalid data together with a residue
indicating that the data should be ignored.  Rather than leave the
invalid data in a transfer buffer, where it can get misinterpreted,
the patch clears the invalid portion of the buffer.

This solves a problem (wrong write-protect setting detected) reported
by Maciej Rutecki and Peter Teoh.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Peter Teoh <htmldeveloper@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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