Commit baf1aace authored by Biju Das's avatar Biju Das Committed by Wim Van Sebroeck
Browse files

watchdog: rzg2l_wdt: Add error check for reset_control_deassert 



If reset_control_deassert() fails, then we won't be able to
access the device registers. Therefore check the return code of
reset_control_deassert() and bailout in case of error.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220225175320.11041-6-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 33d04d0f

drivers/watchdog/rzg2l_wdt.c

+4 −1
Original line number Diff line number Diff line
@@ -203,7 +203,10 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) 
		return dev_err_probe(&pdev->dev, PTR_ERR(priv->rstc),

				     "failed to get cpg reset");



	reset_control_deassert(priv->rstc);

	ret = reset_control_deassert(priv->rstc);

	if (ret)

		return dev_err_probe(dev, ret, "failed to deassert");



	pm_runtime_enable(&pdev->dev);



	priv->wdev.info = &rzg2l_wdt_ident;