tree be08341de622d83c58e1fe6397348cbeb8d5b927
parent 73fa6427aa5df95728eab41ec1b24f04a0dcf51e
author Holger Hans Peter Freyther <holger@moiji-mobile.com> 1373523422 +0200
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1376063304 +0200

lapd: Remove the double NULL check idiom with msgb_free

if (ptr)
  msgb_free(ptr)

extends to:

if (ptr)
  talloc_free(ptr)

And according to the talloc documentation a talloc_free(NULL)
will not crash: "... Likewise, if "ptr" is NULL, then the function
will make no modifications and returns -1."