parisc: hp_sdc_mlc.c - check return value of down_trylock()

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index b587e2d..820e516 100644 (file)
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -296,7 +296,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
        priv->tseq[3] = 0;
        if (mlc->opacket & HIL_CTRL_APE) {
                priv->tseq[3] |= HP_SDC_LPC_APE_IPF;
-               down_trylock(&mlc->csem);
+               BUG_ON(down_trylock(&mlc->csem));
        }
  enqueue:
        hp_sdc_enqueue_transaction(&priv->trans);