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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-20 02:32:35 +0400 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-20 02:32:35 +0400 |
| commit | a34a8751f312bd4674d48d63556efa8f0e3a1021 (patch) | |
| tree | 9469a043423e8870def1213d1652c54ee02234cb /drivers/ide/legacy/dtc2278.c | |
| parent | 2047e15be4247efd430d067aae5bd24c11d99999 (diff) | |
| download | linux-a34a8751f312bd4674d48d63556efa8f0e3a1021.tar.xz | |
dtc2278: fix deadlock on error handling
Stop abusing ide_lock lock (switch to a private locking).
Fixes same issue as fixed by Alan Cox in atiixp host driver with
commit 6c5f8cc33eb2e10b6ab788bbe259fc142a068627.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/legacy/dtc2278.c')
| -rw-r--r-- | drivers/ide/legacy/dtc2278.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c index 253a20fc8061..acd728368771 100644 --- a/drivers/ide/legacy/dtc2278.c +++ b/drivers/ide/legacy/dtc2278.c @@ -67,18 +67,20 @@ static void sub22 (char b, char c) } } +static DEFINE_SPINLOCK(dtc2278_lock); + static void dtc2278_set_pio_mode(ide_drive_t *drive, const u8 pio) { unsigned long flags; if (pio >= 3) { - spin_lock_irqsave(&ide_lock, flags); + spin_lock_irqsave(&dtc2278_lock, flags); /* * This enables PIO mode4 (3?) on the first interface */ sub22(1,0xc3); sub22(0,0xa0); - spin_unlock_irqrestore(&ide_lock, flags); + spin_unlock_irqrestore(&dtc2278_lock, flags); } else { /* we don't know how to set it back again.. */ } |