iwlwifi: dbg_ini: fix memory leak in alloc_sgtable

commit b4b814fe upstream.

In alloc_sgtable if alloc_page fails, the alocated table should be
released.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/net/wireless/intel/iwlwifi/fw/dbg.c

@@ -547,6 +547,7 @@ static struct scatterlist *alloc_sgtable(int size)
 				if (new_page)
 					__free_page(new_page);
 			}
+			kfree(table);
 			return NULL;
 		}
 		alloc_size = min_t(int, size, PAGE_SIZE);