Fix potential memory leak
Fix potential memory leak

Reported by scan-build.

anood/libraqm,Fahad-Alsaidi/libraqm,HOST-Oman/libraqm,Fahad-Alsaidi/libraqm,HOST-Oman/libraqm-cmake,HOST-Oman/libraqm,Ident/libraqm,HOST-Oman/libraqm-cmake,Ident/libraqm,HOST-Oman/libraqm,anood/libraqm