[PATCH] Fix "Dialer: Error setting antenna power" failure at startup

[Mike (mwester)]

Current images are crippled because the dailer fails at startup with the
message "Dialer: Error setting antenna power".

This problem is traced back to a recent change committed to OE that adds
error-checking logic to the read/write calls in libgsmd.  Basically,
lgsm_send_simple() calls lgsm_send(), and expects the return value to be the
number of characters sent.  The recent patch to add error-checking changed
lgsm_send() to return a 0 on success, which results in lgsm_send_simple()
always returning the error code EIO on success.

The patch below restores the old behavior for lgsm_send(), such that it
returns the number of characters on succuss.  Arguably it might be better to
change the callers behavior such that they all expect the more-standard "0"
return value for success.

(Unless anyone has any strong objections in the next day, I'll commit this
simple fix to OE - at least as an interim solution so that we can get
current images to function correctly again)

Thanks!
Mike (mwester)

--- gsm/src/libgsmd/libgsmd.c.orig      2007-09-25 00:41:56.000000000 -0500
+++ gsm/src/libgsmd/libgsmd.c   2007-09-25 00:43:44.000000000 -0500
 -210,7 +210,7 @@
                        pos += rc;
                }
        }
-       return 0;
+       return (sizeof(*gmh) + gmh->len);
 }

 struct gsmd_msg_hdr *lgsm_gmh_fill(int type, int subtype, int payload_len)