zd1211rw: cancel process_intr work on zd_chip_disable_int()
OOPS if worker is running and disconnect() is called (triggered
by unpluging device). Much harder to trigger at this stage but
later when we have AP beacon work in process_intr it happens very
easy.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index 6a9b660..b644ced 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -1407,6 +1407,9 @@
mutex_lock(&chip->mutex);
zd_usb_disable_int(&chip->usb);
mutex_unlock(&chip->mutex);
+
+ /* cancel pending interrupt work */
+ cancel_work_sync(&zd_chip_to_mac(chip)->process_intr);
}
int zd_chip_enable_rxtx(struct zd_chip *chip)