diff options
Diffstat (limited to 'drivers/ata/libahci.c')
| -rw-r--r-- | drivers/ata/libahci.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index e5d90977caec..09620c2ffa0f 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -35,6 +35,7 @@ #include <linux/kernel.h> #include <linux/gfp.h> #include <linux/module.h> +#include <linux/nospec.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/interrupt.h> @@ -1146,10 +1147,12 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, /* get the slot number from the message */ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8; - if (pmp < EM_MAX_SLOTS) + if (pmp < EM_MAX_SLOTS) { + pmp = array_index_nospec(pmp, EM_MAX_SLOTS); emp = &pp->em_priv[pmp]; - else + } else { return -EINVAL; + } /* mask off the activity bits if we are in sw_activity * mode, user should turn off sw_activity before setting @@ -1649,7 +1652,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc) * Fill in command table information. First, the header, * a SATA Register - Host to Device command FIS. */ - cmd_tbl = pp->cmd_tbl + qc->tag * AHCI_CMD_TBL_SZ; + cmd_tbl = pp->cmd_tbl + qc->hw_tag * AHCI_CMD_TBL_SZ; ata_tf_to_fis(&qc->tf, qc->dev->link->pmp, 1, cmd_tbl); if (is_atapi) { @@ -1670,7 +1673,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc) if (is_atapi) opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH; - ahci_fill_cmd_slot(pp, qc->tag, opts); + ahci_fill_cmd_slot(pp, qc->hw_tag, opts); } static void ahci_fbs_dec_intr(struct ata_port *ap) @@ -2006,7 +2009,7 @@ unsigned int ahci_qc_issue(struct ata_queued_cmd *qc) pp->active_link = qc->dev->link; if (ata_is_ncq(qc->tf.protocol)) - writel(1 << qc->tag, port_mmio + PORT_SCR_ACT); + writel(1 << qc->hw_tag, port_mmio + PORT_SCR_ACT); if (pp->fbs_enabled && pp->fbs_last_dev != qc->dev->link->pmp) { u32 fbs = readl(port_mmio + PORT_FBS); @@ -2016,7 +2019,7 @@ unsigned int ahci_qc_issue(struct ata_queued_cmd *qc) pp->fbs_last_dev = qc->dev->link->pmp; } - writel(1 << qc->tag, port_mmio + PORT_CMD_ISSUE); + writel(1 << qc->hw_tag, port_mmio + PORT_CMD_ISSUE); ahci_sw_activity(qc->dev->link); |