diff options
| -rw-r--r-- | drivers/ata/sata_mv.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index be9ae4fc5cbe..8245c82505cc 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1575,6 +1575,7 @@ static int mv_port_start(struct ata_port *ap) struct device *dev = ap->host->dev; struct mv_host_priv *hpriv = ap->host->private_data; struct mv_port_priv *pp; + unsigned long flags; int tag; pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); @@ -1610,8 +1611,12 @@ static int mv_port_start(struct ata_port *ap) pp->sg_tbl_dma[tag] = pp->sg_tbl_dma[0]; } } + + spin_lock_irqsave(ap->lock, flags); mv_save_cached_regs(ap); mv_edma_cfg(ap, 0, 0); + spin_unlock_irqrestore(ap->lock, flags); + return 0; out_port_free_dma_mem: @@ -1630,8 +1635,12 @@ out_port_free_dma_mem: */ static void mv_port_stop(struct ata_port *ap) { + unsigned long flags; + + spin_lock_irqsave(ap->lock, flags); mv_stop_edma(ap); mv_enable_port_irqs(ap, 0); + spin_unlock_irqrestore(ap->lock, flags); mv_port_free_dma_mem(ap); } |