[PATCH] ARM/mvebu: Fix possible null dereference in armada_375_380_coherency_init

[yuuoniy]

Prevent potential when access p->name after unsuccessful allocation.
Signed-off-by: yuuoniy <linmq006@xxxxxxxxx>
---
 arch/arm/mach-mvebu/coherency.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 49e3c8d20c2f..4fdb1fae63c5 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -194,6 +194,8 @@ static void __init armada_375_380_coherency_init(struct device_node *np)
 		struct property *p;
 
 		p = kzalloc(sizeof(*p), GFP_KERNEL);
+		if (!p)
+			return;
 		p->name = kstrdup("arm,io-coherent", GFP_KERNEL);
 		of_add_property(cache_dn, p);
 	}
-- 
2.17.1