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Message-ID: <1414316325.4290.3.camel@phoenix>
Date:	Sun, 26 Oct 2014 17:38:45 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Santosh Shilimkar <ssantosh@...nel.org>
Cc:	Sandeep Nair <sandeep_n@...com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 2/3] soc: ti: knav_qmss_queue: Fix unbalanced locking in
 knav_pool_create()

Don't call mutex_unlock() in the error patch if the mutex_lock() is not called.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/soc/ti/knav_qmss_queue.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 0a2c863..d66aaf2 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -785,7 +785,7 @@ void *knav_pool_create(const char *name,
 		dev_err(kdev->dev, "out of descs in region(%d) for pool(%s)\n",
 			region_id, name);
 		ret = -ENOMEM;
-		goto err;
+		goto err_unlock;
 	}
 
 	/* Region maintains a sorted (by region offset) list of pools
@@ -815,15 +815,16 @@ void *knav_pool_create(const char *name,
 		dev_err(kdev->dev, "pool(%s) create failed: fragmented desc pool in region(%d)\n",
 			name, region_id);
 		ret = -ENOMEM;
-		goto err;
+		goto err_unlock;
 	}
 
 	mutex_unlock(&knav_dev_lock);
 	kdesc_fill_pool(pool);
 	return pool;
 
-err:
+err_unlock:
 	mutex_unlock(&knav_dev_lock);
+err:
 	kfree(pool->name);
 	devm_kfree(kdev->dev, pool);
 	return ERR_PTR(ret);
-- 
1.9.1



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