libata: call ->scsi_done from ata_scsi_simulate

We always need to call ->scsi_done after we've finished emulating a
command, so do it in a single place at the end of ata_scsi_simulate.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 7 insertions, 15 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 28e2530b9cd3..6078bc28b325 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -484,13 +484,6 @@ struct device_attribute *ata_common_sdev_attrs[] = {
 };
 EXPORT_SYMBOL_GPL(ata_common_sdev_attrs);
 
-static void ata_scsi_invalid_field(struct ata_device *dev,
-                                   struct scsi_cmnd *cmd, u16 field)
-{
-        ata_scsi_set_invalid_field(dev, cmd, field, 0xff);
-        cmd->scsi_done(cmd);
-}
-
 /**
  *      ata_std_bios_param - generic bios head/sector/cylinder calculator used by sd.
  *      @sdev: SCSI device for which BIOS geometry is to be determined
@@ -2139,7 +2132,6 @@ static void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
 
         if (rc == 0)
                 cmd->result = SAM_STAT_GOOD;
-        cmd->scsi_done(cmd);
 }
 
 /**
@@ -4360,7 +4352,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
         switch(scsicmd[0]) {
         case INQUIRY:
                 if (scsicmd[1] & 2)                /* is CmdDt set?  */
-                    ata_scsi_invalid_field(dev, cmd, 1);
+                        ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
                 else if ((scsicmd[1] & 1) == 0)    /* is EVPD clear? */
                         ata_scsi_rbuf_fill(&args, ata_scsiop_inq_std);
                 else switch (scsicmd[2]) {
@@ -4392,7 +4384,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
                         }
                         /* Fallthrough */
                 default:
-                        ata_scsi_invalid_field(dev, cmd, 2);
+                        ata_scsi_set_invalid_field(dev, cmd, 2, 0xff);
                         break;
                 }
                 break;
@@ -4410,7 +4402,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
                 if ((scsicmd[1] & 0x1f) == SAI_READ_CAPACITY_16)
                         ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap);
                 else
-                        ata_scsi_invalid_field(dev, cmd, 1);
+                        ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
                 break;
 
         case REPORT_LUNS:
@@ -4420,7 +4412,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
         case REQUEST_SENSE:
                 ata_scsi_set_sense(dev, cmd, 0, 0, 0);
                 cmd->result = (DRIVER_SENSE << 24);
-                cmd->scsi_done(cmd);
                 break;
 
         /* if we reach this, then writeback caching is disabled,
@@ -4442,23 +4433,24 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
                 if ((tmp8 == 0x4) && (!scsicmd[3]) && (!scsicmd[4]))
                         ata_scsi_rbuf_fill(&args, ata_scsiop_noop);
                 else
-                        ata_scsi_invalid_field(dev, cmd, 1);
+                        ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
                 break;
 
         case MAINTENANCE_IN:
                 if (scsicmd[1] == MI_REPORT_SUPPORTED_OPERATION_CODES)
                         ata_scsi_rbuf_fill(&args, ata_scsiop_maint_in);
                 else
-                        ata_scsi_invalid_field(dev, cmd, 1);
+                        ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
                 break;
 
         /* all other commands */
         default:
                 ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x20, 0x0);
                 /* "Invalid command operation code" */
-                cmd->scsi_done(cmd);
                 break;
         }
+
+        cmd->scsi_done(cmd);
 }
 
 int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)