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.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
drivers/ide/ide.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -694,6 +694,15 @@ int ide_register_hw(hw_regs_t *hw, void
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
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++)
-
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