41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Zhang, Qi" <qi1.zhang@intel.com>
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Date: Mon, 6 Nov 2017 12:35:31 +0800
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Subject: [PATCH] trusty: Add null check pointer before deference
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Add null check before deference pointer.
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Change-Id: Icc9d61e17e3ecadfa1bd7fc252cf5e3d7aabb636
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Signed-off-by: Zhang, Qi <qi1.zhang@intel.com>
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---
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drivers/trusty/trusty-irq.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/drivers/trusty/trusty-irq.c b/drivers/trusty/trusty-irq.c
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index b576729ec868..868a31c01f19 100644
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--- a/drivers/trusty/trusty-irq.c
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+++ b/drivers/trusty/trusty-irq.c
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@@ -199,6 +199,9 @@ static int trusty_irq_cpu_up(unsigned int cpu, struct hlist_node *node)
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unsigned long irq_flags;
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struct trusty_irq_state *is = hlist_entry_safe(node, struct trusty_irq_state, node);
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+ if(is == NULL)
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+ return 0;
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+
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dev_dbg(is->dev, "%s: cpu %d\n", __func__, smp_processor_id());
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local_irq_save(irq_flags);
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@@ -212,6 +215,9 @@ static int trusty_irq_cpu_down(unsigned int cpu, struct hlist_node *node)
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unsigned long irq_flags;
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struct trusty_irq_state *is = hlist_entry_safe(node, struct trusty_irq_state, node);
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+ if(is == NULL)
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+ return 0;
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+
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dev_dbg(is->dev, "%s: cpu %d\n", __func__, smp_processor_id());
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local_irq_save(irq_flags);
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--
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https://clearlinux.org
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