add check to resize disk if current size could not be determined

This check ensures that disks aren't unintentionally shrunken, if the
size is zero due to an underlying problem.

diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 6609c3558b6a686fd04a924de7f54baf9897c976..5bd340726308fc61e6e5309f233494ac4be21b57 100644 (file)
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -3579,6 +3579,8 @@ __PACKAGE__->register_method({
            PVE::Storage::activate_volumes($storecfg, [$volid]);
            my $size = PVE::Storage::volume_size_info($storecfg, $volid, 5);
 
+           die "Size of volume $volid couldn't be determined\n" if (!defined($size));
+
            die "internal error" if $sizestr !~ m/^(\+)?(\d+(\.\d+)?)([KMGT])?$/;
            my ($ext, $newsize, $unit) = ($1, $2, $4);
            if ($unit) {