scst_get_unique_sess_name(): Handle out-of-memory properly

Return NULL instead of triggering a NULL pointer dereference if out
of memory. Detected by Coverity.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4656 d57e44dd-8a1f-0410-8b47-8ef2f437770f

scst/src/scst_targ.c

@@ -6474,6 +6474,7 @@ restart:
 					PRINT_ERROR("Unable to allocate a "
 						"replacement name (size %d)",
 						len);
+					break;
 				}
 			}