libata: Fix EH merge difference between this branch and upstream.

drivers/scsi/libata-eh.c

@@ -97,7 +97,7 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
  *	RETURNS:
  *	Zero.
  */
-int ata_scsi_error(struct Scsi_Host *host)
+void ata_scsi_error(struct Scsi_Host *host)
 {
 	struct ata_port *ap = (struct ata_port *)&host->hostdata[0];
 
@@ -116,7 +116,6 @@ int ata_scsi_error(struct Scsi_Host *host)
 	scsi_eh_flush_done_q(&ap->eh_done_q);
 
 	DPRINTK("EXIT\n");
-	return 0;
 }
 
 /**

drivers/scsi/libata.h

@@ -105,5 +105,6 @@ extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
 
 /* libata-eh.c */
 extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
+extern void ata_scsi_error(struct Scsi_Host *host);
 
 #endif /* __LIBATA_H__ */

include/linux/libata.h

@@ -637,7 +637,6 @@ extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_
 /*
  * EH
  */
-extern int ata_scsi_error(struct Scsi_Host *host);
 extern void ata_eng_timeout(struct ata_port *ap);
 extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
 extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);