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authorMarc-André Lureau <marcandre.lureau@redhat.com>2019-10-04 15:12:09 +0400
committerPaolo Bonzini <pbonzini@redhat.com>2019-12-17 19:32:47 +0100
commite4f1bea2a8d021b35c5f83035f9af89f5e5bfeef (patch)
tree5063c996dd20fb26fcfe70c65a30f66e13ffbad7
parentb965e8c538b30116a637d64da6e2bd6d54e50171 (diff)
downloadfocaccia-qemu-e4f1bea2a8d021b35c5f83035f9af89f5e5bfeef.tar.gz
focaccia-qemu-e4f1bea2a8d021b35c5f83035f9af89f5e5bfeef.zip
migration: fix maybe-uninitialized warning
../migration/ram.c: In function ‘multifd_recv_thread’:
/home/elmarco/src/qq/include/qapi/error.h:165:5: error: ‘block’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  165 |     error_setg_internal((errp), __FILE__, __LINE__, __func__,   \
      |     ^~~~~~~~~~~~~~~~~~~
../migration/ram.c:818:15: note: ‘block’ was declared here
  818 |     RAMBlock *block;
      |               ^~~~~

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--migration/ram.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/migration/ram.c b/migration/ram.c
index 38070f1bb2..219e3caa03 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -863,15 +863,17 @@ static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp)
     p->next_packet_size = be32_to_cpu(packet->next_packet_size);
     p->packet_num = be64_to_cpu(packet->packet_num);
 
-    if (p->pages->used) {
-        /* make sure that ramblock is 0 terminated */
-        packet->ramblock[255] = 0;
-        block = qemu_ram_block_by_name(packet->ramblock);
-        if (!block) {
-            error_setg(errp, "multifd: unknown ram block %s",
-                       packet->ramblock);
-            return -1;
-        }
+    if (p->pages->used == 0) {
+        return 0;
+    }
+
+    /* make sure that ramblock is 0 terminated */
+    packet->ramblock[255] = 0;
+    block = qemu_ram_block_by_name(packet->ramblock);
+    if (!block) {
+        error_setg(errp, "multifd: unknown ram block %s",
+                   packet->ramblock);
+        return -1;
     }
 
     for (i = 0; i < p->pages->used; i++) {