From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Fri, 31 Dec 2010 09:25:05 +0000 (+0800)
Subject: busdma: Free bounce zone if any error happens during bus_dma_tag_create()
X-Git-Tag: v2.11.0~377
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/37111f9c4a25a18d85edda8be1d7dcd7bd1393ff

busdma: Free bounce zone if any error happens during bus_dma_tag_create()
---

diff --git a/sys/platform/pc32/i386/busdma_machdep.c b/sys/platform/pc32/i386/busdma_machdep.c
index 3a248938a9..b45e2d68fd 100644
--- a/sys/platform/pc32/i386/busdma_machdep.c
+++ b/sys/platform/pc32/i386/busdma_machdep.c
@@ -363,10 +363,12 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
 		}
 	}
 back:
-	if (error)
+	if (error) {
+		free_bounce_zone(newtag);
 		kfree(newtag, M_DEVBUF);
-	else
+	} else {
 		*dmat = newtag;
+	}
 	return error;
 }
 
diff --git a/sys/platform/pc64/x86_64/busdma_machdep.c b/sys/platform/pc64/x86_64/busdma_machdep.c
index ed3e6aaafa..473030dfc2 100644
--- a/sys/platform/pc64/x86_64/busdma_machdep.c
+++ b/sys/platform/pc64/x86_64/busdma_machdep.c
@@ -363,10 +363,12 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
 		}
 	}
 back:
-	if (error)
+	if (error) {
+		free_bounce_zone(newtag);
 		kfree(newtag, M_DEVBUF);
-	else
+	} else {
 		*dmat = newtag;
+	}
 	return error;
 }