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path: root/drivers/ata/sata_inic162x.c
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Diffstat (limited to 'drivers/ata/sata_inic162x.c')
-rw-r--r--drivers/ata/sata_inic162x.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index 3de1834..a9c948d 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -190,34 +190,34 @@ static void inic_reset_port(void __iomem *port_base)
writew(ctl, idma_ctl);
}
-static u32 inic_scr_read(struct ata_port *ap, unsigned sc_reg)
+static int inic_scr_read(struct ata_port *ap, unsigned sc_reg, u32 *val)
{
void __iomem *scr_addr = ap->ioaddr.scr_addr;
void __iomem *addr;
- u32 val;
if (unlikely(sc_reg >= ARRAY_SIZE(scr_map)))
- return 0xffffffffU;
+ return -EINVAL;
addr = scr_addr + scr_map[sc_reg] * 4;
- val = readl(scr_addr + scr_map[sc_reg] * 4);
+ *val = readl(scr_addr + scr_map[sc_reg] * 4);
/* this controller has stuck DIAG.N, ignore it */
if (sc_reg == SCR_ERROR)
- val &= ~SERR_PHYRDY_CHG;
- return val;
+ *val &= ~SERR_PHYRDY_CHG;
+ return 0;
}
-static void inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val)
+static int inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val)
{
void __iomem *scr_addr = ap->ioaddr.scr_addr;
void __iomem *addr;
if (unlikely(sc_reg >= ARRAY_SIZE(scr_map)))
- return;
+ return -EINVAL;
addr = scr_addr + scr_map[sc_reg] * 4;
writel(val, scr_addr + scr_map[sc_reg] * 4);
+ return 0;
}
/*
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