From c8115f8eb8b6c4742e5e0c0c644904cd81ed65fa Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Fri, 21 Jul 2017 09:21:05 +0100 Subject: block/vpc: fix uninitialised variable compiler warning Since commit cfc87e00 "block/vpc.c: Handle write failures in get_image_offset()" older versions of gcc (in this case 4.7) incorrectly warn that "ret" can be used uninitialised in vpc_co_pwritev(). Setting ret to 0 at the start of vpc_co_pwritev() prevents the warning in gcc 4.7 and enables compilation with -Werror to succeed. Signed-off-by: Mark Cave-Ayland Reviewed-by: Eric Blake Reviewed-by: Stefan Hajnoczi Message-id: 1500625265-23844-1-git-send-email-mark.cave-ayland@ilande.co.uk Signed-off-by: Peter Maydell --- block/vpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/vpc.c b/block/vpc.c index 10e6519d78..574879ba7c 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -649,7 +649,7 @@ vpc_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, int64_t image_offset; int64_t n_bytes; int64_t bytes_done = 0; - int ret; + int ret = 0; VHDFooter *footer = (VHDFooter *) s->footer_buf; QEMUIOVector local_qiov; -- cgit v1.2.3