[PATCH] ide-scsi: kmap scatter/gather before doing PIO

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From: Stuart Hayes <Stuart_Hayes@dell.com>

The system can panic with a null pointer dereference using ide-scsi if
PIO is being done on scatter gather pages that are in high memory,
because page_address() returns 0.  We are actually seeing this using a
tape drive.  This patch will kmap_atomic() the pages before performing
PIO.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>

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Stuart Hayes 2005-05-26 15:38:45 +02:00 • committed by Bartlomiej Zolnierkiewicz

parent 8604affde9

commit 41bb4c43b3

1 changed files with 24 additions and 4 deletions

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drivers/scsi/ide-scsi.c

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