From: Dan Carpenter <error27@gmail.com>
To: Matthew Garrett <mjg@redhat.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>,
Jiri Slaby <jslaby@suse.cz>,
platform-driver-x86@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [patch] intel_ips: potential null dereference
Date: Sat, 07 Aug 2010 22:01:12 +0000 [thread overview]
Message-ID: <20100807215703.GA9031@bicker> (raw)
There is a potential NULL dereference of "limits." We can just return
NULL earlier to avoid it. The caller already handles NULL returns.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index afe82e5..c908048 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -1342,8 +1342,10 @@ static struct ips_mcp_limits *ips_detect_cpu(struct ips_driver *ips)
limits = &ips_lv_limits;
else if (strstr(boot_cpu_data.x86_model_id, "CPU U"))
limits = &ips_ulv_limits;
- else
+ else {
dev_info(&ips->dev->dev, "No CPUID match found.\n");
+ goto out;
+ }
rdmsrl(TURBO_POWER_CURRENT_LIMIT, turbo_power);
tdp = turbo_power & TURBO_TDP_MASK;
next reply other threads:[~2010-08-07 22:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-07 22:01 Dan Carpenter [this message]
2010-08-07 23:48 ` [patch] intel_ips: potential null dereference Jesse Barnes
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