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Date:      Tue, 25 Jan 2011 22:25:50 +0000 (UTC)
From:      Jack F Vogel <jfv@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-releng@freebsd.org
Subject:   svn commit: r217860 - releng/8.2/sys/dev/e1000
Message-ID:  <201101252225.p0PMPo2T054601@svn.freebsd.org>
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Author: jfv
Date: Tue Jan 25 22:25:50 2011
New Revision: 217860
URL: http://svn.freebsd.org/changeset/base/217860

Log:
  MFC stable/8 r217710
  
  	- Pieces of the failure path in em_xmit got deleted along
  	  the way, correct this.
  	- local_timer had a leftover TX_UNLOCK without matching
  	  LOCK in the error path, remove it.
  
  Approved by:  re (bz)

Modified:
  releng/8.2/sys/dev/e1000/if_em.c
Directory Properties:
  releng/8.2/sys/   (props changed)
  releng/8.2/sys/amd64/include/xen/   (props changed)
  releng/8.2/sys/cddl/contrib/opensolaris/   (props changed)
  releng/8.2/sys/contrib/dev/acpica/   (props changed)
  releng/8.2/sys/contrib/pf/   (props changed)

Modified: releng/8.2/sys/dev/e1000/if_em.c
==============================================================================
--- releng/8.2/sys/dev/e1000/if_em.c	Tue Jan 25 22:25:16 2011	(r217859)
+++ releng/8.2/sys/dev/e1000/if_em.c	Tue Jan 25 22:25:50 2011	(r217860)
@@ -93,7 +93,7 @@ int	em_display_debug_stats = 0;
 /*********************************************************************
  *  Driver version:
  *********************************************************************/
-char em_driver_version[] = "7.1.8";
+char em_driver_version[] = "7.1.9";
 
 /*********************************************************************
  *  PCI Device ID Table
@@ -1909,14 +1909,23 @@ em_xmit(struct tx_ring *txr, struct mbuf
 		error = bus_dmamap_load_mbuf_sg(txr->txtag, map,
 		    *m_headp, segs, &nsegs, BUS_DMA_NOWAIT);
 
-		if (error) {
+		if (error == ENOMEM) {
+			adapter->no_tx_dma_setup++;
+			return (error);
+		} else if (error != 0) {
 			adapter->no_tx_dma_setup++;
 			m_freem(*m_headp);
 			*m_headp = NULL;
 			return (error);
 		}
+
+	} else if (error == ENOMEM) {
+		adapter->no_tx_dma_setup++;
+		return (error);
 	} else if (error != 0) {
 		adapter->no_tx_dma_setup++;
+		m_freem(*m_headp);
+		*m_headp = NULL;
 		return (error);
 	}
 
@@ -2206,7 +2215,6 @@ hung:
 	    txr->me, txr->tx_avail, txr->next_to_clean);
 	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
 	adapter->watchdog_events++;
-	EM_TX_UNLOCK(txr);
 	em_init_locked(adapter);
 }

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