modprobe_small: make rmmod to NOT remove dependencies. Closes 5162

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

modutils/modprobe-small.c

@@ -594,11 +594,18 @@ static void process_module(char *name, const char *cmdline_options)
 				bb_perror_msg("remove '%s'", name);
 			goto ret;
 		}
-		/* N.B. we do not stop here -
+
+		if (applet_name[0] == 'r') {
+			/* rmmod: do not remove dependencies, exit */
+			goto ret;
+		}
+
+		/* modprobe -r: we do not stop here -
 		 * continue to unload modules on which the module depends:
 		 * "-r --remove: option causes modprobe to remove a module.
 		 * If the modules it depends on are also unused, modprobe
-		 * will try to remove them, too." */
+		 * will try to remove them, too."
+		 */
 	}
 
 	if (!info) {