From a34a8751f312bd4674d48d63556efa8f0e3a1021 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 20 Oct 2007 00:32:35 +0200 Subject: [PATCH] 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 --- drivers/ide/legacy/dtc2278.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c index 253a20fc806..acd72836877 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.. */ } -- 2.20.1