gprs: Don't check for EINPROGRESS in gprs_gsup_client_create

Currently, the return value of gsup_client_connect is checked whether
it is < 0 and != -EINPROGESS. Since gsup_client_connect will only
return a negative value on a few permanent errors (not including
EINPROGRESS), rc is always != EINPROGRESS.

This patch removes the explicit check againt -EINPROGRESS and just
leaves the check rc < 0.

Sponsored-by: On-Waves ehf

openbsc/src/gprs/gprs_gsup_client.c

@@ -238,7 +238,7 @@ struct gprs_gsup_client *gprs_gsup_client_create(const char *ip_addr,
 
 	rc = gsup_client_connect(gsupc);
 
-	if (rc < 0 && rc != -EINPROGRESS)
+	if (rc < 0)
 		goto failed;
 
 	gsupc->read_cb = read_cb;