zd1211rw: fix build warning

Tasklet conversion patches intoruced a build warning
in init_usb_rx(), this patch fixes the same.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 26721b02 ("zd1211rw: convert tasklets to use new tasklet_setup() API")
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200831043425.281538-1-allen.lkml@gmail.com

drivers/net/wireless/zydas/zd1211rw/zd_usb.c

@@ -1178,8 +1178,9 @@ static inline void init_usb_rx(struct zd_usb *usb)
 	}
 	ZD_ASSERT(rx->fragment_length == 0);
 	INIT_DELAYED_WORK(&rx->idle_work, zd_rx_idle_timer_handler);
-	rx->reset_timer_tasklet.func = (void (*)(unsigned long))
+	rx->reset_timer_tasklet.func = (void (*))
 					zd_usb_reset_rx_idle_timer_tasklet;
+	rx->reset_timer_tasklet.data = (unsigned long)&rx->reset_timer_tasklet;
 }
 
 static inline void init_usb_tx(struct zd_usb *usb)