[PATCH, RFC 10/30] staging: gdm72xx: fix interruptible_sleep_on race

[Arnd Bergmann]

interruptible_sleep_on is racy and going away. This replaces the
use in the gdm72xx driver with the appropriate
wait_event_interruptible_lock_irq.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: devel@xxxxxxxxxxxxxxxxxxxx
---
 drivers/staging/gdm72xx/gdm_usb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index e0cb2ff..f8788bf 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -780,9 +780,10 @@ static int k_mode_thread(void *arg)
 
 			spin_lock_irqsave(&k_lock, flags2);
 		}
+		wait_event_interruptible_lock_irq(k_wait,
+						  !list_empty(&k_list) || k_mode_stop,
+						  k_lock);
 		spin_unlock_irqrestore(&k_lock, flags2);
-
-		interruptible_sleep_on(&k_wait);
 	}
 	return 0;
 }
-- 
1.8.3.2

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