Commit f60ba063 authored Jul 26, 2017 by Saranya Chidura

coresight: tmc: Fix the unbalanced lock in tmc_read()



'commit 734aabed17090 ("coresight: tmc: Fix use after free issue
with tmc read")' adds lock in tmc_read() to fix race condition seen in
reading tmc buffer and enabling the device.But commit has unbalanced
lock. This patch fixes the lock.

Change-Id: Iaf3ecd83ef5af346725885ea2c84c4185f1a1c50
Signed-off-by: Saranya Chidura <schidura@codeaurora.org>

parent 365fabdd

drivers/coresight/coresight-tmc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1586,7 +1586,7 @@ out:
		dev_dbg(drvdata->dev, "%s: %zu bytes copied, %d bytes left\n",
		__func__, len, (int) (drvdata->size - *ppos));

		mutex_lock(&drvdata->usb_lock);
		mutex_unlock(&drvdata->usb_lock);
		return len;
		}