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| author | Olaf Hering <olaf@aepfle.de> | 2006-08-31 21:27:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-01 11:39:08 -0700 |
| commit | ef16b5194f3233a11851180cd82eafb76542047d (patch) | |
| tree | 2c9cf994951b5d539f5dce21aaf93f83c0ba17d3 | |
| parent | a9aa141cfc2e08470bba3b9a8328bc50ac457488 (diff) | |
| download | op-kernel-dev-ef16b5194f3233a11851180cd82eafb76542047d.zip op-kernel-dev-ef16b5194f3233a11851180cd82eafb76542047d.tar.gz | |
[PATCH] exit early in floppy_init when no floppy exists
modprobe -v floppy on a Apple G5 writes incorrect stuff to dmesg:
Floppy drive(s): fd0 is 2.88M
The reason is that the legacy io check happens very late,
when part of the floppy stuff is already initialized.
check_legacy_ioport() returns either -ENODEV right away, or it walks
the device-tree looking for a floppy node.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/block/floppy.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 5109fa3..ad1d706 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4177,6 +4177,11 @@ static int __init floppy_init(void) int i, unit, drive; int err, dr; +#if defined(CONFIG_PPC_MERGE) + if (check_legacy_ioport(FDC1)) + return -ENODEV; +#endif + raw_cmd = NULL; for (dr = 0; dr < N_DRIVE; dr++) { @@ -4234,13 +4239,6 @@ static int __init floppy_init(void) } use_virtual_dma = can_use_virtual_dma & 1; -#if defined(CONFIG_PPC_MERGE) - if (check_legacy_ioport(FDC1)) { - del_timer(&fd_timeout); - err = -ENODEV; - goto out_unreg_region; - } -#endif fdc_state[0].address = FDC1; if (fdc_state[0].address == -1) { del_timer(&fd_timeout); |
