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Date:   Fri, 18 Oct 2019 15:35:34 +0300
From:   Dan Carpenter <dan.carpenter@oracle.com>
To:     Dan Williams <dan.j.williams@intel.com>
Cc:     Vishal Verma <vishal.l.verma@intel.com>,
        Dave Jiang <dave.jiang@intel.com>,
        Keith Busch <keith.busch@intel.com>,
        Ira Weiny <ira.weiny@intel.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <lenb@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-nvdimm@lists.01.org, linux-acpi@vger.kernel.org,
        linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] acpi/nfit: unlock on error in scrub_show()
Message-ID: <20191018123534.GA6549@mwanda>
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We change the locking in this function and forgot to update this error
path so we are accidentally still holding the "dev->lockdep_mutex".

Fixes: 87a30e1f05d7 ("driver-core, libnvdimm: Let device subsystems add local lockdep coverage")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/acpi/nfit/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 1413324982f0..14e68f202f81 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1322,7 +1322,7 @@ static ssize_t scrub_show(struct device *dev,
 	nfit_device_lock(dev);
 	nd_desc = dev_get_drvdata(dev);
 	if (!nd_desc) {
-		device_unlock(dev);
+		nfit_device_unlock(dev);
 		return rc;
 	}
 	acpi_desc = to_acpi_desc(nd_desc);
-- 
2.20.1