diff options
Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r-- | drivers/ata/libata-sff.c | 49 |
1 files changed, 16 insertions, 33 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 6223ec042c8..2a229a1d321 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); } /** |