usb: increase ohci watchdog delay to 275 msec

commit ed6d6f8f42d7302f6f9b6245f34927ec20d26c12 upstream.

Increase ohci watchout delay to 275 ms. Previous delay was 250 ms
with 20 ms of slack, after removing slack time some ohci controllers don't
respond in time. Logs from systems with controllers that have the
issue would show "HcDoneHead not written back; disabled"

Signed-off-by: Bryan Paluch <bryanpaluch@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 760cb57e954efeb8977c3a8e55c9351390e3b67a..9d1192aea9d0c9ea81e2a2cbd6dda2483267da3f 100644 (file)
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -72,7 +72,7 @@
 static const char      hcd_name [] = "ohci_hcd";
 
 #define        STATECHANGE_DELAY       msecs_to_jiffies(300)
-#define        IO_WATCHDOG_DELAY       msecs_to_jiffies(250)
+#define        IO_WATCHDOG_DELAY       msecs_to_jiffies(275)
 
 #include "ohci.h"
 #include "pci-quirks.h"