From: Daniel Henrique Barboza <danielhb413@gmail.com>

ram_save_queue_pages() has an 'err' label that can be replaced by
'return -1' instead.

Same thing with ram_discard_range(), and in this case we can also
get rid of the 'ret' variable and return either '-1' on error
or the result of ram_block_discard_range().

CC: Juan Quintela <quintela@redhat.com>
CC: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/ram.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index 39e7b922ff..825f47f517 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2459,7 +2459,7 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
              * it's the 1st request.
              */
             error_report("ram_save_queue_pages no previous block");
-            goto err;
+            return -1;
         }
     } else {
         ramblock = qemu_ram_block_by_name(rbname);
@@ -2467,7 +2467,7 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
         if (!ramblock) {
             /* We shouldn't be asked for a non-existent RAMBlock */
             error_report("ram_save_queue_pages no block '%s'", rbname);
-            goto err;
+            return -1;
         }
         rs->last_req_rb = ramblock;
     }
@@ -2476,7 +2476,7 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
         error_report("%s request overrun start=" RAM_ADDR_FMT " len="
                      RAM_ADDR_FMT " blocklen=" RAM_ADDR_FMT,
                      __func__, start, len, ramblock->used_length);
-        goto err;
+        return -1;
     }
 
     struct RAMSrcPageRequest *new_entry =
@@ -2492,9 +2492,6 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
     qemu_mutex_unlock(&rs->src_page_req_mutex);
 
     return 0;
-
-err:
-    return -1;
 }
 
 static bool save_page_use_compression(RAMState *rs)
@@ -3097,8 +3094,6 @@ int ram_postcopy_send_discard_bitmap(MigrationState *ms)
  */
 int ram_discard_range(const char *rbname, uint64_t start, size_t length)
 {
-    int ret = -1;
-
     trace_ram_discard_range(rbname, start, length);
 
     RCU_READ_LOCK_GUARD();
@@ -3106,7 +3101,7 @@ int ram_discard_range(const char *rbname, uint64_t start, size_t length)
 
     if (!rb) {
         error_report("ram_discard_range: Failed to find block '%s'", rbname);
-        goto err;
+        return -1;
     }
 
     /*
@@ -3118,10 +3113,7 @@ int ram_discard_range(const char *rbname, uint64_t start, size_t length)
                      length >> qemu_target_page_bits());
     }
 
-    ret = ram_block_discard_range(rb, start, length);
-
-err:
-    return ret;
+    return ram_block_discard_range(rb, start, length);
 }
 
 /*
-- 
2.24.1