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authorEduardo Habkost <ehabkost@redhat.com>2017-06-08 10:39:03 -0300
committerMarkus Armbruster <armbru@redhat.com>2017-07-13 13:45:53 +0200
commit57ef3f1278585fbac5f6102362d3c5e066976fdc (patch)
tree9ad7b3ba80be868a6b6256586fa983ebb988c476
parenta9859c90a5db200fd4f63ab2cdc973343348b9ef (diff)
downloadfocaccia-qemu-57ef3f1278585fbac5f6102362d3c5e066976fdc.tar.gz
focaccia-qemu-57ef3f1278585fbac5f6102362d3c5e066976fdc.zip
block: Don't try to set *errp directly
Assigning directly to *errp is not valid, as errp may be NULL,
&error_fatal, or &error_abort.  Use error_propagate() instead.

With this, there's no need to check if errp is NULL anymore, as
error_propagate() and error_prepend() are able to handle that.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170608133906.12737-3-ehabkost@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
-rw-r--r--block.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/block.c b/block.c
index 694396281b..b1599d26db 100644
--- a/block.c
+++ b/block.c
@@ -4267,11 +4267,9 @@ bool bdrv_op_is_blocked(BlockDriverState *bs, BlockOpType op, Error **errp)
     assert((int) op >= 0 && op < BLOCK_OP_TYPE_MAX);
     if (!QLIST_EMPTY(&bs->op_blockers[op])) {
         blocker = QLIST_FIRST(&bs->op_blockers[op]);
-        if (errp) {
-            *errp = error_copy(blocker->reason);
-            error_prepend(errp, "Node '%s' is busy: ",
-                          bdrv_get_device_or_node_name(bs));
-        }
+        error_propagate(errp, error_copy(blocker->reason));
+        error_prepend(errp, "Node '%s' is busy: ",
+                      bdrv_get_device_or_node_name(bs));
         return true;
     }
     return false;