diff options
| -rw-r--r-- | drivers/scsi/atari_scsi.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c index a59ad94ea52b..862f30c23ff0 100644 --- a/drivers/scsi/atari_scsi.c +++ b/drivers/scsi/atari_scsi.c @@ -670,14 +670,26 @@ static void atari_scsi_tt_reg_write(unsigned char reg, unsigned char value) static unsigned char atari_scsi_falcon_reg_read(unsigned char reg) { - dma_wd.dma_mode_status= (u_short)(0x88 + reg); - return (u_char)dma_wd.fdc_acces_seccount; + unsigned long flags; + unsigned char result; + + reg += 0x88; + local_irq_save(flags); + dma_wd.dma_mode_status = (u_short)reg; + result = (u_char)dma_wd.fdc_acces_seccount; + local_irq_restore(flags); + return result; } static void atari_scsi_falcon_reg_write(unsigned char reg, unsigned char value) { - dma_wd.dma_mode_status = (u_short)(0x88 + reg); + unsigned long flags; + + reg += 0x88; + local_irq_save(flags); + dma_wd.dma_mode_status = (u_short)reg; dma_wd.fdc_acces_seccount = (u_short)value; + local_irq_restore(flags); } |