From: Tejun Heo <htejun@gmail.com>
Date: Mon, 12 Jun 2006 13:51:14 +0000 (+0900)
Subject: [PATCH] libata: fix oops caused rescanning NULL sdev
X-Git-Tag: v2.6.18-rc1~1079^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d01712698c7c52bc71f41192e864dccc90a1217d;p=pandora-kernel.git

[PATCH] libata: fix oops caused rescanning NULL sdev

Depending on timing, ata_scsi_dev_rescan() might encounter a device
which is enabled but not yet attached to sdev.  On such cases, the
original code caused oops.  This patch makes ata_scsi_dev_rescan()
rescan only device which are attached to sdevs.

While at it, properly indent leading comment and add description about
how it's synchronized with sdev attach/detach.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

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