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Subject[PATCH] mach-mvebu: coherency: Judgment after pointer p increases allocation
Date
Add judgment statements at the position after pointer p allocates memory
to avoid the abnormal impact of low probability allocation failure.

Signed-off-by: Li zeming <zeming@nfschina.com>
---
arch/arm/mach-mvebu/coherency.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index a6b621ff0b87..2bc69dd059d6 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -191,8 +191,10 @@ static void __init armada_375_380_coherency_init(struct device_node *np)
struct property *p;

p = kzalloc(sizeof(*p), GFP_KERNEL);
- p->name = kstrdup("arm,io-coherent", GFP_KERNEL);
- of_add_property(cache_dn, p);
+ if (p) {
+ p->name = kstrdup("arm,io-coherent", GFP_KERNEL);
+ of_add_property(cache_dn, p);
+ }
}
}

--
2.18.2
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