svec-drv.c: zero map on error, or next time would EPERM

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

svec-drv.c: zero map on error, or next time would EPERM
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
5ceff51f · Alessandro Rubini · b0001d0d · 5ceff51f
Commit 5ceff51f authored May 15, 2013 by Alessandro Rubini
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svec-drv.c kernel/svec-drv.c +1 -0

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--- a/kernel/svec-drv.c
+++ b/kernel/svec-drv.c
@@ -87,6 +87,7 @@ int svec_map_window(struct svec_dev *svec, enum svec_map_win map_type)
 		dev_err(dev, "Failed to map window %d: (%d)\n",
 				(int)map_type, rval);
 		kfree(svec->map[map_type]);
+		svec->map[map_type] = NULL;
 		return -EINVAL;
 	}