Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1235969

[PATCH 3.16.y-ckt 092/133] usb: gadget: m66592-udc: forever loop in set_feature()

From Luis Henriques <luis.henriques@canonical.com>
Newsgroups linux.kernel
Subject [PATCH 3.16.y-ckt 092/133] usb: gadget: m66592-udc: forever loop in set_feature()
Date 2015-09-30 12:00 +0200
Message-ID <qeml7-1mP-41@gated-at.bofh.it> (permalink)
References <qeml5-1mP-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


3.16.7-ckt18 -stable review patch.  If anyone has any objections, please let me know.

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

From: Dan Carpenter <dan.carpenter@oracle.com>

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@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[ luis: backported to 3.16:
  - file rename: drivers/usb/gadget/udc/m66592-udc.c ->
    drivers/usb/gadget/m66592-udc.c ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/gadget/m66592-udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 0d17174b86f8..36b47a794d77 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1052,7 +1052,7 @@ static void set_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
 				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,
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[PATCH 3.16.y-ckt 092/133] usb: gadget: m66592-udc: forever loop in set_feature() Luis Henriques <luis.henriques@canonical.com> - 2015-09-30 12:00 +0200

csiph-web