ip_mroute: Delete unreachable code

As the flag M_WAITOK is passed to ip_encap_attach(), then the function
will never return NULL, and the following code within NULL check branch
will be unreachable.

No functional change intended.

Reviewed by:	kp
Fixes:		6d8fdfa9d5 Rework IP encapsulation handling code
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D39746

This commit is contained in:

Zhenlei Huang

2023-04-23 12:47:57 +08:00

parent c373e1d6ad

commit b658c0fce1

1 changed files with 0 additions and 5 deletions

									
										sys/netinet/ip_mroute.c
									
		-5
	
												View File
												
				@@ -2821,11 +2821,6 @@ ip_mroute_modevent(module_t mod, int type, void *unused)

								&pim_squelch_wholepkt);

						pim_encap_cookie = ip_encap_attach(&ipv4_encap_cfg, NULL, M_WAITOK);

						if (pim_encap_cookie == NULL) {

							printf("ip_mroute: unable to attach pim encap\n");

							MRW_LOCK_DESTROY();

							return (EINVAL);

						}

						ip_mcast_src = X_ip_mcast_src;

						ip_mforward = X_ip_mforward;