[PATCH qemu-server v2 2/7] drive: get tpm state size: also warn if there was no size returned

[Fiona Ebner <f.ebner@proxmox.com>]

Some storage plugin implementations of the volume_size_info() method
do not fail with a hard error. In particular, the native file-based
plugins use file_size_info() which returns undef upon failure. Thus,
explicitly check the size.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---

New in v2.

 src/PVE/QemuServer/Drive.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/PVE/QemuServer/Drive.pm b/src/PVE/QemuServer/Drive.pm
index 0ca3d636..7b288e78 100644
--- a/src/PVE/QemuServer/Drive.pm
+++ b/src/PVE/QemuServer/Drive.pm
@@ -1334,7 +1334,9 @@ sub get_tpmstate_size {
         if !defined($storecfg);
 
     my $size = eval { PVE::Storage::volume_size_info($storecfg, $volid, 10) };
-    warn "failed to get size of the tpm drive $volid: $@" if $@;
+    my $err = $@;
+    $err = "no size in result" if !$err && !$size;
+    warn "failed to get size of the tpm drive $volid: $err" if $err;
 
     if (!$size || $size < TPMSTATE_DISK_SIZE) {
         $size = TPMSTATE_DISK_SIZE;
-- 
2.47.3