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-rw-r--r--drivers/ata/libata-eh.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 0d0a2c0..ec32082 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2814,6 +2814,7 @@ void ata_eh_finish(struct ata_port *ap)
/**
* ata_do_eh - do standard error handling
* @ap: host port to handle error for
+ *
* @prereset: prereset method (can be NULL)
* @softreset: softreset method (can be NULL)
* @hardreset: hardreset method (can be NULL)
@@ -2844,6 +2845,30 @@ void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_eh_finish(ap);
}
+/**
+ * ata_std_error_handler - standard error handler
+ * @ap: host port to handle error for
+ *
+ * Standard error handler
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep).
+ */
+void ata_std_error_handler(struct ata_port *ap)
+{
+ struct ata_port_operations *ops = ap->ops;
+ ata_reset_fn_t hardreset = ops->hardreset;
+
+ /* sata_std_hardreset is inherited to all drivers from
+ * ata_base_port_ops. Ignore it if SCR access is not
+ * available.
+ */
+ if (hardreset == sata_std_hardreset && !sata_scr_valid(&ap->link))
+ hardreset = NULL;
+
+ ata_do_eh(ap, ops->prereset, ops->softreset, hardreset, ops->postreset);
+}
+
#ifdef CONFIG_PM
/**
* ata_eh_handle_port_suspend - perform port suspend operation
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