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authorKevin Wolf <kwolf@redhat.com>2017-07-31 14:43:19 +0200
committerKevin Wolf <kwolf@redhat.com>2017-08-01 18:09:33 +0200
commit8e8eb0a9035e5b6c6447c82138570e388282cfa2 (patch)
tree934230f997739bcabfeab98a360a8f42460010af
parent59fa68f3f39cc596f93205f0862c8978c503f2c8 (diff)
downloadqemu-arm-8e8eb0a9035e5b6c6447c82138570e388282cfa2.tar.gz
block/qapi: Remove redundant NULL check to silence Coverity
When skipping implicit nodes in bdrv_block_device_info(), we know that bs0 is always non-NULL; initially, because it's taken from a BdrvChild and a BdrvChild never has a NULL bs, and after the first iteration because implicit nodes always have a backing file. Remove the NULL check and add an assertion that the implicit node does indeed have a backing file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
-rw-r--r--block/qapi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/qapi.c b/block/qapi.c
index d2b18ee9df..5f1a71f5d2 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -145,8 +145,9 @@ BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
/* Skip automatically inserted nodes that the user isn't aware of for
* query-block (blk != NULL), but not for query-named-block-nodes */
- while (blk && bs0 && bs0->drv && bs0->implicit) {
+ while (blk && bs0->drv && bs0->implicit) {
bs0 = backing_bs(bs0);
+ assert(bs0);
}
}