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path: root/drivers/ata/libata-sff.c
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Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c49
1 files changed, 16 insertions, 33 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 6223ec042c80..2a229a1d3211 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -396,28 +396,21 @@ void ata_bmdma_thaw(struct ata_port *ap)
}
/**
- * ata_bmdma_drive_eh - Perform EH with given methods for BMDMA controller
+ * ata_bmdma_error_handler - Stock error handler for BMDMA controller
* @ap: port to handle error for
- * @prereset: prereset method (can be NULL)
- * @softreset: softreset method (can be NULL)
- * @hardreset: hardreset method (can be NULL)
- * @postreset: postreset method (can be NULL)
*
- * Handle error for ATA BMDMA controller. It can handle both
+ * Stock error handler for BMDMA controller. It can handle both
* PATA and SATA controllers. Many controllers should be able to
* use this EH as-is or with some added handling before and
* after.
*
- * This function is intended to be used for constructing
- * ->error_handler callback by low level drivers.
- *
* LOCKING:
* Kernel thread context (may sleep)
*/
-void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
- ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
- ata_postreset_fn_t postreset)
+void ata_bmdma_error_handler(struct ata_port *ap)
{
+ ata_reset_fn_t softreset = ap->ops->softreset;
+ ata_reset_fn_t hardreset = ap->ops->hardreset;
struct ata_queued_cmd *qc;
unsigned long flags;
int thaw = 0;
@@ -460,29 +453,19 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_eh_thaw_port(ap);
/* PIO and DMA engines have been stopped, perform recovery */
- ata_do_eh(ap, prereset, softreset, hardreset, postreset);
-}
-
-/**
- * ata_bmdma_error_handler - Stock error handler for BMDMA controller
- * @ap: port to handle error for
- *
- * Stock error handler for BMDMA controller.
- *
- * LOCKING:
- * Kernel thread context (may sleep)
- */
-void ata_bmdma_error_handler(struct ata_port *ap)
-{
- ata_reset_fn_t softreset = NULL, hardreset = NULL;
- if (ap->ioaddr.ctl_addr)
- softreset = ata_std_softreset;
- if (sata_scr_valid(&ap->link))
- hardreset = sata_std_hardreset;
+ /* ata_std_softreset and sata_std_hardreset are inherited to
+ * all SFF drivers from ata_sff_port_ops. Ignore softreset if
+ * ctl isn't accessible. Ignore hardreset if SCR access isn't
+ * available.
+ */
+ if (softreset == ata_std_softreset && !ap->ioaddr.ctl_addr)
+ softreset = NULL;
+ if (hardreset == sata_std_hardreset && !sata_scr_valid(&ap->link))
+ hardreset = NULL;
- ata_bmdma_drive_eh(ap, ata_std_prereset, softreset, hardreset,
- ata_std_postreset);
+ ata_do_eh(ap, ap->ops->prereset, softreset, hardreset,
+ ap->ops->postreset);
}
/**