From: yuuoniy <linmq006@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linmq006@gmail.com, Andrew Lunn <andrew@lunn.ch>,
Gregory Clement <gregory.clement@bootlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ARM/mvebu: Fix possible null dereference in armada_375_380_coherency_init
Date: Mon, 15 Nov 2021 10:51:54 +0000 [thread overview]
Message-ID: <20211115105154.26714-1-linmq006@gmail.com> (raw)
Prevent potential when access p->name after unsuccessful allocation.
Signed-off-by: yuuoniy <linmq006@gmail.com>
---
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
reply other threads:[~2021-11-15 10:53 UTC|newest]
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