From: Max Reitz Date: Mon, 2 Sep 2019 21:33:16 +0200 Subject: vpc: Return 0 from vpc_co_create() on success Git-commit: 1a37e3124407b5a145d44478d3ecbdb89c63789f blockdev_create_run() directly uses .bdrv_co_create()'s return value as the job's return value. Jobs must return 0 on success, not just any nonnegative value. Therefore, using blockdev-create for VPC images may currently fail as the vpc driver may return a positive integer. Because there is no point in returning a positive integer anywhere in the block layer (all non-negative integers are generally treated as complete success), we probably do not want to add more such cases. Therefore, fix this problem by making the vpc driver always return 0 in case of success. Suggested-by: Kevin Wolf Cc: qemu-stable@nongnu.org Signed-off-by: Max Reitz Signed-off-by: Kevin Wolf Signed-off-by: Bruce Rogers --- block/vpc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/vpc.c b/block/vpc.c index d4776ee8a5229ff43e8fb4fb6e0f..3a88e28e2be18553ff50a9b5c070 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -885,6 +885,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf, goto fail; } + ret = 0; fail: return ret; } @@ -908,7 +909,7 @@ static int create_fixed_disk(BlockBackend *blk, uint8_t *buf, return ret; } - return ret; + return 0; } static int calculate_rounded_image_size(BlockdevCreateOptionsVpc *vpc_opts,