[Skiboot] [PATCH 3/3] [Device] Verify zalloc returned valid pointer

[Ananth N Mavinakayanahalli]

Else, we are dereferencing NULL

Signed-off-by: Ananth N Mavinakayanahalli <ananth at in.ibm.com>
---
 core/device.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/device.c b/core/device.c
index 09f76d7..ba427de 100644
--- a/core/device.c
+++ b/core/device.c
@@ -348,6 +348,9 @@ struct dt_property *dt_add_property_nstr(struct dt_node *node,
 	struct dt_property *p;
 	char *tmp = zalloc(vlen + 1);
 
+	if (!tmp)
+		return NULL;
+
 	strncpy(tmp, value, vlen);
 	p = dt_add_property(node, name, tmp, strlen(tmp)+1);
 	free(tmp);