From 66e7a6c82d44a9cb4fc476221381b47e3d157644 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 20 Oct 2007 00:32:35 +0200 Subject: [PATCH] opti621: 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 69531232dcd07805735e73f9537f044cd5b08968. * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/opti621.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c index 8d28f335611b0..8953d9c3926fe 100644 --- a/drivers/ide/pci/opti621.c +++ b/drivers/ide/pci/opti621.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/opti621.c Version 0.8 Aug 27, 2007 + * linux/drivers/ide/pci/opti621.c Version 0.9 Sep 24, 2007 * * Copyright (C) 1996-1998 Linus Torvalds & authors (see below) */ @@ -133,6 +133,8 @@ static int reg_base; #define PIO_NOT_EXIST 254 #define PIO_DONT_KNOW 255 +static DEFINE_SPINLOCK(opti621_lock); + /* there are stored pio numbers from other calls of opti621_set_pio_mode */ static void compute_pios(ide_drive_t *drive, const u8 pio) /* Store values into drive->drive_data @@ -278,7 +280,7 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio) second.recovery_time, drdy); #endif - spin_lock_irqsave(&ide_lock, flags); + spin_lock_irqsave(&opti621_lock, flags); reg_base = hwif->io_ports[IDE_DATA_OFFSET]; @@ -317,7 +319,7 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio) /* and read prefetch for both drives */ write_reg(misc, MISC_REG); - spin_unlock_irqrestore(&ide_lock, flags); + spin_unlock_irqrestore(&opti621_lock, flags); } /* -- 2.39.5