From 795d74b51a853e1f5f2c81baf6666836a3866f08 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 26 Jan 2008 20:13:03 +0100 Subject: [PATCH] ide: don't try to unregister interfaces if 'initializing' in ide_register_hw() Host drivers using ide_register_hw() and 'initializing == 1': * ide-pnp - depends on ISA * ide_arm - ARM arch specific - initialized before all other host drivers * ide-cris - CRIS arch specific => IDE_ARCH_OBSOLETE_INIT is not defined - broken * ide-h8300 - H8300 arch specific => IDE_ARCH_OBSOLETE_INIT is not defined, no PCI * buddha/q40/gayle/macide/falconide - M68K arch specific => IDE_ARCH_OBSOLETE_INIT is not defined, no PCI Since the only host drivers which probe interfaces before the above ones are: * ali14xx/dtc2278/ht6560b/qd65xx/umc8672 - depend on ISA - require IDE_ARCH_OBSOLETE_INIT=y to work * PCI ones - depend on PCI don't try to unregister interfaces if 'initializing == 1' in ide_register_hw() (it is possible that built-in host drivers will claim all IDE interfaces but later ide-pnp host driver will try to unregister them - this change fixes it). Also skip hwif->hold check if 'initializing == 1' since it is set only by: * pmac - PPC && PMAC specific => no ISA * au1xxx-ide - MIPS && SOC_AU1200 specific => no ISA and use ide_find_port() helper to find free ide_hwifs[] slot. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 0d7328e0fb..8ef521f66f 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -694,6 +694,15 @@ int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), int index, retry = 1; ide_hwif_t *hwif; + if (initializing) { + hwif = ide_find_port(hw->io_ports[IDE_DATA_OFFSET]); + if (hwif) { + index = hwif->index; + goto found; + } + return -1; + } + do { for (index = 0; index < MAX_HWIFS; ++index) { hwif = &ide_hwifs[index]; @@ -704,8 +713,7 @@ int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), hwif = &ide_hwifs[index]; if (hwif->hold) continue; - if ((!hwif->present && !hwif->mate && !initializing) || - (!hwif->io_ports[IDE_DATA_OFFSET] && initializing)) + if (!hwif->present && hwif->mate == NULL) goto found; } for (index = 0; index < MAX_HWIFS; index++) -- 2.39.5