diff options
Diffstat (limited to 'drivers/ata/sata_vsc.c')
| -rw-r--r-- | drivers/ata/sata_vsc.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c index 1b5d81faa102..24344d0d0575 100644 --- a/drivers/ata/sata_vsc.c +++ b/drivers/ata/sata_vsc.c @@ -98,20 +98,21 @@ enum { VSC_SATA_INT_PHY_CHANGE), }; -static u32 vsc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) +static int vsc_sata_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) { if (sc_reg > SCR_CONTROL) - return 0xffffffffU; - return readl(ap->ioaddr.scr_addr + (sc_reg * 4)); + return -EINVAL; + *val = readl(ap->ioaddr.scr_addr + (sc_reg * 4)); + return 0; } -static void vsc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, - u32 val) +static int vsc_sata_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) { if (sc_reg > SCR_CONTROL) - return; + return -EINVAL; writel(val, ap->ioaddr.scr_addr + (sc_reg * 4)); + return 0; } |