Module Name:    src
Committed By:   msaitoh
Date:           Tue May 17 00:02:57 UTC 2022

Modified Files:
        src/sys/dev/pci: if_wm.c

Log Message:
Call m_freem(m) only if m0 == NULL.


To generate a diff of this commit:
cvs rdiff -u -r1.730 -r1.731 src/sys/dev/pci/if_wm.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/pci/if_wm.c
diff -u src/sys/dev/pci/if_wm.c:1.730 src/sys/dev/pci/if_wm.c:1.731
--- src/sys/dev/pci/if_wm.c:1.730	Tue May  3 00:23:33 2022
+++ src/sys/dev/pci/if_wm.c	Tue May 17 00:02:57 2022
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_wm.c,v 1.730 2022/05/03 00:23:33 gutteridge Exp $	*/
+/*	$NetBSD: if_wm.c,v 1.731 2022/05/17 00:02:57 msaitoh Exp $	*/
 
 /*
  * Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@@ -82,7 +82,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.730 2022/05/03 00:23:33 gutteridge Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.731 2022/05/17 00:02:57 msaitoh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_net_mpsafe.h"
@@ -8016,9 +8016,10 @@ wm_send_common_locked(struct ifnet *ifp,
 			 * increment successed packet counter as in the case
 			 * which the packet is discarded by link down PHY.
 			 */
-			if (m0 != NULL)
+			if (m0 != NULL) {
 				if_statinc(ifp, if_opackets);
-			m_freem(m0);
+				m_freem(m0);
+			}
 		} while (m0 != NULL);
 		return;
 	}
@@ -8633,9 +8634,10 @@ wm_nq_send_common_locked(struct ifnet *i
 			 * increment successed packet counter as in the case
 			 * which the packet is discarded by link down PHY.
 			 */
-			if (m0 != NULL)
+			if (m0 != NULL) {
 				if_statinc(ifp, if_opackets);
-			m_freem(m0);
+				m_freem(m0);
+			}
 		} while (m0 != NULL);
 		return;
 	}

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