From: Cyrill Gorcunov <gorcunov@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 4/4] Sky Cpu and Nexus: check for create_proc_entry ret code
Date: Thu, 5 Jul 2007 20:55:37 +0400 [thread overview]
Message-ID: <20070705165537.GE7180@cvg> (raw)
This patch adds checking of create_proc_entry call
to prevent possible NULL pointer usage.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
---
drivers/misc/hdpuftrs/hdpu_nexus.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/hdpuftrs/hdpu_nexus.c b/drivers/misc/hdpuftrs/hdpu_nexus.c
index 01bc917..cc81853 100644
--- a/drivers/misc/hdpuftrs/hdpu_nexus.c
+++ b/drivers/misc/hdpuftrs/hdpu_nexus.c
@@ -78,10 +78,20 @@ static int hdpu_nexus_probe(struct platform_device *pdev)
}
hdpu_slot_id = create_proc_entry("sky_slot_id", 0666, &proc_root);
- hdpu_slot_id->read_proc = hdpu_slot_id_read;
+ if (!hdpu_slot_id) {
+ printk(KERN_WARNING "sky_nexus: "
+ "Unable to create proc dir entry: sky_slot_id\n");
+ } else {
+ hdpu_slot_id->read_proc = hdpu_slot_id_read;
+ }
hdpu_chassis_id = create_proc_entry("sky_chassis_id", 0666, &proc_root);
- hdpu_chassis_id->read_proc = hdpu_chassis_id_read;
+ if (!hdpu_chassis_id) {
+ printk(KERN_WARNING "sky_nexus: "
+ "Unable to create proc dir entry: sky_chassis_id\n");
+ } else {
+ hdpu_chassis_id->read_proc = hdpu_chassis_id_read;
+ }
return 0;
}
reply other threads:[~2007-07-05 16:55 UTC|newest]
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