soc: mediatek: pwrap: add missing check on rstc

The variable rstc is set only when the SoC PWRAP have the
PWRAP_CAP_RESET capability. Check whether rstc is set before
using it to avoid errors.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 8236a6c87e19f0bcd3f066b409307a844c2f1e61..b3ba2301f569bd3ebebc732c0cca1fafe2c40556 100644 (file)
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -1478,7 +1478,8 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 {
        int ret;
 
-       reset_control_reset(wrp->rstc);
+       if (wrp->rstc)
+               reset_control_reset(wrp->rstc);
        if (wrp->rstc_bridge)
                reset_control_reset(wrp->rstc_bridge);