[PATCH] libata: Fixup ata_sas_queuecmd to handle __ata_scsi_queuecmd failure

Fixes ata_sas_queuecmd to properly handle a failure from
__ata_scsi_queuecmd.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 22643c0d9a56..47ea111d5ace 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3347,20 +3347,23 @@ EXPORT_SYMBOL_GPL(ata_sas_slave_configure);
  *      @ap:    ATA port to which the command is being sent
  *
  *      RETURNS:
- *      Zero.
+ *      Return value from __ata_scsi_queuecmd() if @cmd can be queued,
+ *      0 otherwise.
  */
 
 int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
                      struct ata_port *ap)
 {
+        int rc = 0;
+
         ata_scsi_dump_cdb(ap, cmd);
 
         if (likely(ata_scsi_dev_enabled(ap->device)))
-                __ata_scsi_queuecmd(cmd, done, ap->device);
+                rc = __ata_scsi_queuecmd(cmd, done, ap->device);
         else {
                 cmd->result = (DID_BAD_TARGET << 16);
                 done(cmd);
         }
-        return 0;
+        return rc;
 }
 EXPORT_SYMBOL_GPL(ata_sas_queuecmd);