From: Eyal Moscovici <[email protected]> The code handles this case correctly: we merely skip the loop. However it is probably best to return an explicit error.
Reviewed-by: Eric Blake <[email protected]> Acked-by: Mark Kanda <[email protected]> Signed-off-by: Eyal Moscovici <[email protected]> Message-Id: <[email protected]> [eblake: commit message tweak] Signed-off-by: Eric Blake <[email protected]> --- qemu-img.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/qemu-img.c b/qemu-img.c index 5d824fc15f39..c88f412333ec 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -3092,6 +3092,11 @@ static int img_map(int argc, char **argv) } length = blk_getlength(blk); + if (length < 0) { + error_report("Failed to get size for '%s'", filename); + return 1; + } + while (curr.start + curr.length < length) { int64_t offset = curr.start + curr.length; int64_t n; -- 2.26.2
