check device pointer before register it

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

check device pointer before register it
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
ca75f9be · Federico Vaga · d952f5c0 · ca75f9be
Commit ca75f9be authored Jul 03, 2015 by Federico Vaga
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objects.c objects.c +3 -0

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--- a/objects.c
+++ b/objects.c
@@ -1223,6 +1223,9 @@ int zio_register_device(struct zio_device *zdev, const char *name,
 {
 	int n_conflict;

+	if (!zdev)
+		return -EINVAL;
+
 	/* Verify if it is a valid name */
 	n_conflict = zobj_unique_name(&zstat->all_devices, name);
 	if (n_conflict < 0)