gsm411_sms.c: Handle negative return of gsm340_gen_oa()
treefda0472bb92dd7057f3294c7d0efc3f743bdb618
-rw-r--r-- 502 .gitignore
-rw-r--r-- 52 .gitreview
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - include
drwxr-xr-x - src