Merge remote-tracking branch 'lsk/v3.10/topic/aosp' into linux-linaro-lsk-android

[firefly-linux-kernel-4.4.55.git] / drivers / scsi / scsi_lib.c

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 86d522004a208255b17861b4c1cb556bbe7c973e..e5953c8018c55919743397965a2b189757121fdd 100644 (file)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -815,6 +815,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
                        scsi_next_command(cmd);
                        return;
                }
+       } else if (blk_rq_bytes(req) == 0 && result && !sense_deferred) {
+               /*
+                * Certain non BLOCK_PC requests are commands that don't
+                * actually transfer anything (FLUSH), so cannot use
+                * good_bytes != blk_rq_bytes(req) as the signal for an error.
+                * This sets the error explicitly for the problem case.
+                */
+               error = __scsi_error_from_host_byte(cmd, result);
        }
 
        /* no bidi support for !REQ_TYPE_BLOCK_PC yet */