Applying InnoDB plugin snashot

Detailed revision comments:

r6109 | jyang | 2009-10-29 10:37:32 +0200 (Thu, 29 Oct 2009) | 7 lines
branches/zip: In os_mem_alloc_large(), if we fail to attach
the shared memory, reset memory pointer ptr to NULL, and
 allocate memory from conventional pool.
Bug #48237 Error handling in os_mem_alloc_large appears to be incorrect
rb://198  Approved by: Marko

storage/innodb_plugin/os/os0proc.c

@@ -97,6 +97,7 @@ os_mem_alloc_large(
 			fprintf(stderr, "InnoDB: HugeTLB: Warning: Failed to"
 				" attach shared memory segment, errno %d\n",
 				errno);
+			ptr = NULL;
 		}
 
 		/* Remove the shared memory segment so that it will be