svn commit: r289619 - head/sys/arm/arm

Ian Lepore ian at FreeBSD.org
Tue Oct 20 03:28:00 UTC 2015


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);
 


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