From 2e13093a834ddbbf92701d477e69c9018959a82c Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 26 Jan 2008 20:13:04 +0100 Subject: [PATCH] ide: fix probing for hosts with serialized or IRQ sharing interfaces After hwif_register_devices() IDE devices are ready to be used so the way in which ide_device_add() works currently is racy for hosts with serialized / IRQ sharing interfaces. Fix ide_device_add() by looping over interfaces for probe_hwif(), hwif_init() and hwif_register_devices() operations. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index bfcc8078b092..817564fba820 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1382,9 +1382,14 @@ int ide_device_add(u8 idx[4]) if (idx[i] == 0xff) continue; - hwif = &ide_hwifs[idx[i]]; + probe_hwif(&ide_hwifs[idx[i]]); + } - probe_hwif(hwif); + for (i = 0; i < 4; i++) { + if (idx[i] == 0xff) + continue; + + hwif = &ide_hwifs[idx[i]]; if (hwif_init(hwif) == 0) { printk(KERN_INFO "%s: failed to initialize IDE " @@ -1392,6 +1397,13 @@ int ide_device_add(u8 idx[4]) rc = -1; continue; } + } + + for (i = 0; i < 4; i++) { + if (idx[i] == 0xff) + continue; + + hwif = &ide_hwifs[idx[i]]; if (hwif->present) hwif_register_devices(hwif); -- GitLab