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From: Ian Lepore <ian@FreeBSD.org>
Date: Tue, 20 Oct 2015 03:27:59 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r289619 - head/sys/arm/arm
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Author: ian
Date: Tue Oct 20 03:27:59 2015
New Revision: 289619
URL: https://svnweb.freebsd.org/changeset/base/289619

Log:
  Follow the advice of the misplaced comment and don't access the map struct
  after freeing it.  Remove the comment whose uselessness has been revealed.

Modified:
  head/sys/arm/arm/busdma_machdep.c

Modified: head/sys/arm/arm/busdma_machdep.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep.c	Tue Oct 20 03:25:17 2015	(r289618)
+++ head/sys/arm/arm/busdma_machdep.c	Tue Oct 20 03:27:59 2015	(r289619)
@@ -786,10 +786,9 @@ bus_dmamem_free(bus_dma_tag_t dmat, void
 		ba = coherent_allocator;
 	else
 		ba = standard_allocator;
-	uma_zfree(dmamap_zone, map);
 
 	free(map->slist, M_DEVBUF);
-	/* Be careful not to access map from here on. */
+	uma_zfree(dmamap_zone, map);
 
 	bufzone = busdma_bufalloc_findzone(ba, dmat->maxsize);