From: ian <ian@FreeBSD.org>
Date: Tue, 20 Oct 2015 03:27:59 +0000 (+0000)
Subject: Follow the advice of the misplaced comment and don't access the map struct
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=290940e1f5f17a60ab5f90f5d38c2e56a2428647;p=people%2Fjulieng%2Ffreebsd.git

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.
---

diff --git a/sys/arm/arm/busdma_machdep.c b/sys/arm/arm/busdma_machdep.c
index d7498c5d111a..bc3035d3ed63 100644
--- a/sys/arm/arm/busdma_machdep.c
+++ b/sys/arm/arm/busdma_machdep.c
@@ -786,10 +786,9 @@ bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map)
 		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);