patch "test_firmware: fix missing unlock on error in" added to driver-core-next

patch "test_firmware: fix missing unlock on error in" added to driver-core-next

[gregkh]

This is a note to let you know that I've just added the patch titled

    test_firmware: fix missing unlock on error in

to my driver-core git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
in the driver-core-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


>From a5e1923356505e46476c2fb518559b7a4d9d25b1 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Thu, 11 Jan 2018 11:12:55 +0000
Subject: test_firmware: fix missing unlock on error in
 config_num_requests_store()

Add the missing unlock before return from function
config_num_requests_store() in the error handling case.

Fixes: c92316bf8e94 ("test_firmware: add batched firmware tests")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/test_firmware.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index 1e907dd3b4fe..078a61480573 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -371,6 +371,7 @@ static ssize_t config_num_requests_store(struct device *dev,
 	if (test_fw_config->reqs) {
 		pr_err("Must call release_all_firmware prior to changing config\n");
 		rc = -EINVAL;
+		mutex_unlock(&test_fw_mutex);
 		goto out;
 	}
 	mutex_unlock(&test_fw_mutex);
-- 
2.16.0