From 5992583889ce6b7960e8023e356b2a0930ebce7c Mon Sep 17 00:00:00 2001
From: Matthias Urlichs <smurf@smurf.noris.de>
Date: Mon, 11 Sep 2006 12:35:20 +0200
Subject: [PATCH] usbserial: Reference leak
A sufficiently-large number of USB serial devices causes a reference leak
when /proc/tty/drivers/usbserial is read.
Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/serial/usb-serial.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 12c1694d322ef..e06a41bd0f3ba 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -464,8 +464,10 @@ static int serial_read_proc (char *page, char **start, off_t off, int count, int
length += sprintf (page+length, " path:%s", tmp);
length += sprintf (page+length, "\n");
- if ((length + begin) > (off + count))
+ if ((length + begin) > (off + count)) {
+ usb_serial_put(serial);
goto done;
+ }
if ((length + begin) < off) {
begin += length;
length = 0;
--
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