scsi-generic: Handle queue full

The sg driver currently has a hardcoded limit of commands it
can handle simultaneously. When this limit is reached the
driver will return -EDOM. So we need to capture this to
enable proper return values here.

Signed-off-by: Hannes Reinecke <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>

diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index 579bab9e7cb2c513d2cbd983863d03dd946d1532..76706064193d6ac94c43c26f5f5e0bd8d4f378f1 100644 (file)
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -124,6 +124,9 @@ static void scsi_command_complete(void *opaque, int ret)
 
     if (ret != 0) {
         switch (ret) {
+        case -EDOM:
+            r->req.status = TASK_SET_FULL;
+            break;
         case -EINVAL:
             r->req.status = CHECK_CONDITION;
             scsi_set_sense(s, SENSE_CODE(INVALID_FIELD));