2.6.32-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit abdc9a3b4bac97add99e1d77dc6d28623afe682b upstream.
The code expects the loop to end with "retries" set to zero but, because
it is a post-op, it will end set to -1. I have fixed this by moving the
decrement inside the loop.
Fixes: 014aa2a3c32e ('USB: ipaq: minor ipaq_open() cleanup.')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
(cherry picked from commit 53a68d3f1629de82ddeb4e0882b0727fc230a6f3)
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
drivers/usb/serial/ipaq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index d6231c3..09102e3 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -663,8 +663,8 @@ static int ipaq_open(struct tty_struct *tty,
* through. Since this has a reasonably high failure rate, we retry
* several times.
*/
-
- while (retries--) {
+ while (retries) {
+ retries--;
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
0x1, 0, NULL, 0, 100);
--
1.7.12.2.21.g234cd45.dirty
--
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