[pve-devel] [PATCH common] fix #3259: always free certificate file after reading it

[Stoiko Ivanov <s.ivanov@proxmox.com>]

This commit mirrors e3c4007bc94956962c03da8c6853415d2fdf057c in
pve-cluster. The fix there got lost with a refactoring for reusing the
code here in pve-common in c92b771669e68a8b49906b8a0a68b533750567b0

Tested by repeadetly reading https://$pve-node:8006/nodes on a
virtual testcluster.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 src/PVE/Certificate.pm | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/PVE/Certificate.pm b/src/PVE/Certificate.pm
index 5bc9848..31a7722 100644
--- a/src/PVE/Certificate.pm
+++ b/src/PVE/Certificate.pm
@@ -199,10 +199,8 @@ my $read_certificate = sub {
 	or $ssl_die->("unable to read '$cert_path' - $!\n");
 
     my $cert = Net::SSLeay::PEM_read_bio_X509($bio);
-    if (!$cert) {
-	Net::SSLeay::BIO_free($bio);
-	die "unable to read certificate from '$cert_path'\n";
-    }
+    Net::SSLeay::BIO_free($bio);
+    die "unable to read certificate from '$cert_path'\n" if !$cert;
 
     return $cert;
 };
-- 
2.20.1