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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-20 00:32:35 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-20 00:32:35 +0200 |
| commit | a482958bf60c434dc12ea0491938c8853d9774fb (patch) | |
| tree | e53abc56646d51ea6681684ae7b03c164310f4a2 | |
| parent | e65dde715c4241d6b17d86fa4ada2f78668274d9 (diff) | |
| download | kernel_samsung_smdk4412-a482958bf60c434dc12ea0491938c8853d9774fb.zip kernel_samsung_smdk4412-a482958bf60c434dc12ea0491938c8853d9774fb.tar.gz kernel_samsung_smdk4412-a482958bf60c434dc12ea0491938c8853d9774fb.tar.bz2 | |
slc90e66: 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.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/pci/slc90e66.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c index c457bf4..eb4445b 100644 --- a/drivers/ide/pci/slc90e66.c +++ b/drivers/ide/pci/slc90e66.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/slc90e66.c Version 0.18 Aug 9, 2007 + * linux/drivers/ide/pci/slc90e66.c Version 0.19 Sep 24, 2007 * * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> @@ -21,6 +21,8 @@ #include <asm/io.h> +static DEFINE_SPINLOCK(slc90e66_lock); + static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); @@ -40,7 +42,7 @@ static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio) { 2, 1 }, { 2, 3 }, }; - spin_lock_irqsave(&ide_lock, flags); + spin_lock_irqsave(&slc90e66_lock, flags); pci_read_config_word(dev, master_port, &master_data); if (pio > 1) @@ -71,7 +73,7 @@ static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio) pci_write_config_word(dev, master_port, master_data); if (is_slave) pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&ide_lock, flags); + spin_unlock_irqrestore(&slc90e66_lock, flags); } static void slc90e66_set_dma_mode(ide_drive_t *drive, const u8 speed) |