[PATCH 4.2 068/120] usb: gadget: m66592-udc: forever loop in set_feature()

From: Greg Kroah-Hartman
Date: Sat Sep 19 2015 - 14:09:26 EST


4.2-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit 5feb5d2003499b1094d898c010a7604d7afddc4c upstream.

There is an "&&" vs "||" typo here so this loops 3000 times or if we get
unlucky it could loop forever.

Fixes: ceaa0a6eeadf ('usb: gadget: m66592-udc: add support for TEST_MODE')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/usb/gadget/udc/m66592-udc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1052,7 +1052,7 @@ static void set_feature(struct m66592 *m
tmp = m66592_read(m66592, M66592_INTSTS0) &
M66592_CTSQ;
udelay(1);
- } while (tmp != M66592_CS_IDST || timeout-- > 0);
+ } while (tmp != M66592_CS_IDST && timeout-- > 0);

if (tmp == M66592_CS_IDST)
m66592_bset(m66592,


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