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* [PATCH] [media] hdpvr: Fix memory leak in debug
@ 2014-01-17 16:38 Masanari Iida
  0 siblings, 0 replies; only message in thread
From: Masanari Iida @ 2014-01-17 16:38 UTC (permalink / raw)
  To: m.chehab, linux-media, linux-kernel, hverkuil; +Cc: Masanari Iida

cppcheck reported memory leak in device_authorizatio()
within hdpvr-core.c.
When the debug option is specified and the code jump to
"unlock:" label, print_buf was not freed.
Confirm the module succesfully compiled without error.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
---
 drivers/media/usb/hdpvr/hdpvr-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/hdpvr/hdpvr-core.c b/drivers/media/usb/hdpvr/hdpvr-core.c
index 2f0c89c..c563896 100644
--- a/drivers/media/usb/hdpvr/hdpvr-core.c
+++ b/drivers/media/usb/hdpvr/hdpvr-core.c
@@ -198,7 +198,6 @@ static int device_authorization(struct hdpvr_device *dev)
 	hex_dump_to_buffer(response, 8, 16, 1, print_buf, 5*buf_size+1, 0);
 	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, " response: %s\n",
 		 print_buf);
-	kfree(print_buf);
 #endif
 
 	msleep(100);
@@ -214,6 +213,9 @@ static int device_authorization(struct hdpvr_device *dev)
 	retval = ret != 8;
 unlock:
 	mutex_unlock(&dev->usbc_mutex);
+#ifdef HDPVR_DEBUG
+	kfree(print_buf);
+#endif
 	return retval;
 }
 
-- 
1.8.5.2.309.ga25014b


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