free descs array to avoid leak (Coverity)


git-svn-id: svn+ssh://svn.code.sf.net/p/gphoto/code/trunk@14540 67ed7778-7388-44ab-90cf-0a291f65f57c
avoid leak on error path


git-svn-id: svn+ssh://svn.code.sf.net/p/gphoto/code/trunk@14541 67ed7778-7388-44ab-90cf-0a291f65f57c
break loop on append error to avoid leaks


git-svn-id: svn+ssh://svn.code.sf.net/p/gphoto/code/trunk@14542 67ed7778-7388-44ab-90cf-0a291f65f57c
do not deref a NULL camera_time (Coverity)


git-svn-id: svn+ssh://svn.code.sf.net/p/gphoto/code/trunk@14543 67ed7778-7388-44ab-90cf-0a291f65f57c