From: Bartlomiej Zolnierkiewicz Date: Fri, 19 Oct 2007 22:32:35 +0000 (+0200) Subject: opti621: fix deadlock on error handling X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e65dde715c4241d6b17d86fa4ada2f78668274d9;p=linux-beck.git 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 6c5f8cc33eb2e10b6ab788bbe259fc142a068627. * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c index 8d28f335611b..8953d9c3926f 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); } /*