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| author | Borislav Petkov <petkovbb@gmail.com> | 2009-03-13 21:16:12 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-13 21:16:12 +0100 |
| commit | 3eb76c1ccde496c3c0bfda23d1c803e40b762ce6 (patch) | |
| tree | 2a1524a72a5005c512d4f45696d7cde964f7f457 /drivers/ide/ide-floppy.c | |
| parent | 041b62374c7fedc11a8a1eeda2868612d3d1436c (diff) | |
| download | linux-3eb76c1ccde496c3c0bfda23d1c803e40b762ce6.tar.gz linux-3eb76c1ccde496c3c0bfda23d1c803e40b762ce6.tar.bz2 linux-3eb76c1ccde496c3c0bfda23d1c803e40b762ce6.zip | |
ide-floppy: do not map dataless cmds to an sg
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>
Diffstat (limited to 'drivers/ide/ide-floppy.c')
| -rw-r--r-- | drivers/ide/ide-floppy.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 3eab1c6c9b31..317ec62c33d4 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -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; |