diff options
Diffstat (limited to 'drivers/ide/hd.c')
| -rw-r--r-- | drivers/ide/hd.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/ide/hd.c b/drivers/ide/hd.c index ca3a5c72b..bed5f6210 100644 --- a/drivers/ide/hd.c +++ b/drivers/ide/hd.c @@ -738,6 +738,7 @@ static void __init hd_geninit(void) if (!NR_HD) { extern struct drive_info drive_info; unsigned char *BIOS = (unsigned char *) &drive_info; + unsigned long flags; int cmos_disks; for (drive=0 ; drive<2 ; drive++) { @@ -773,10 +774,15 @@ static void __init hd_geninit(void) Needless to say, a non-zero value means we have an AT controller hard disk for that drive. - + Currently the rtc_lock is a bit academic since this + driver is non-modular, but someday... ? Paul G. */ - if ((cmos_disks = CMOS_READ(0x12)) & 0xf0) { + spin_lock_irqsave(&rtc_lock, flags); + cmos_disks = CMOS_READ(0x12); + spin_unlock_irqrestore(&rtc_lock, flags); + + if (cmos_disks & 0xf0) { if (cmos_disks & 0x0f) NR_HD = 2; else |