From: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
[ Upstream commit fbb3485f1f931102d8ba606f1c28123f5b48afa3 ]
We need to set TASK_INTERRUPTIBLE before calling kthread_should_stop().
Otherwise, kthread_stop() might see that the pccardd thread is still
in TASK_RUNNING state and fail to wake it up.
Additionally, we only need to set the state back to TASK_RUNNING if
kthread_should_stop() breaks the loop.
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Reported-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Fixes: d3046ba809ce ("pcmcia: fix a boot time warning in pcmcia cs code")
Signed-off-by: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pcmcia/cs.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index e211e2619680c..f70197154a362 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -666,18 +666,16 @@ static int pccardd(void *__skt)
if (events || sysfs_events)
continue;
+ set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
- set_current_state(TASK_INTERRUPTIBLE);
-
schedule();
- /* make sure we are running */
- __set_current_state(TASK_RUNNING);
-
try_to_freeze();
}
+ /* make sure we are running before we exit */
+ __set_current_state(TASK_RUNNING);
/* shut down socket, if a device is still present */
if (skt->state & SOCKET_PRESENT) {
--
2.34.1
