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ide-floppy: do not map dataless cmds to an sg

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since it fails the virt_to_page() translation check with DEBUG_VIRTUAL
enabled.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
[bart: backport to Linus' tree]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Borislav Petkov
2009-03-13 21:16:12 +01:00
committed by Bartlomiej Zolnierkiewicz
parent 041b62374c
commit 3eb76c1ccd
2 changed files with 16 additions and 2 deletions
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6
drivers/ide/ide-floppy.c
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@@ -327,8 +327,10 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
return ide_stopped;
}
ide_init_sg_cmd(drive, rq);
ide_map_sg(drive, rq);
if (blk_fs_request(rq) || pc->req_xfer) {
ide_init_sg_cmd(drive, rq);
ide_map_sg(drive, rq);
}
pc->sg = hwif->sg_table;
pc->sg_cnt = hwif->sg_nents;