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From: Alexander Motin <mav@FreeBSD.org>
Date: Wed, 11 Dec 2013 17:40:36 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r259222 - head/sys/dev/ahci
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Author: mav
Date: Wed Dec 11 17:40:35 2013
New Revision: 259222
URL: http://svnweb.freebsd.org/changeset/base/259222

Log:
  Destroy mtx lock when failed to allocate memory during attach.
  
  Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
  MFC after:	2 weeks

Modified:
  head/sys/dev/ahci/ahciem.c

Modified: head/sys/dev/ahci/ahciem.c
==============================================================================
--- head/sys/dev/ahci/ahciem.c	Wed Dec 11 17:18:10 2013	(r259221)
+++ head/sys/dev/ahci/ahciem.c	Wed Dec 11 17:40:35 2013	(r259222)
@@ -85,8 +85,10 @@ ahci_em_attach(device_t dev)
 	mtx_init(&enc->mtx, "AHCI enclosure lock", NULL, MTX_DEF);
 	rid = 0;
 	if (!(enc->r_memc = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
-	    &rid, RF_ACTIVE)))
+	    &rid, RF_ACTIVE))) {
+		mtx_destroy(&enc->mtx);
 		return (ENXIO);
+	}
 	enc->capsem = ATA_INL(enc->r_memc, 0);
 	rid = 1;
 	if (!(enc->r_memt = bus_alloc_resource_any(dev, SYS_RES_MEMORY,