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watchdog: msc313e: Fix NULL pointer dereference in PM callbacks

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msc313e_wdt_probe() doesn't set the driver data for the platform device.
As a result, dev_get_drvdata() in msc313e_wdt_suspend() and
msc313e_wdt_resume() will return NULL, leading to a NULL pointer
dereference afterward.

Set the platform device driver data in msc313e_wdt_probe().

Fixes: e9800b7994 ("watchdog: Add Mstar MSC313e WDT driver")
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://patch.msgid.link/20260827044700.554333-2-tzungbi@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Tzung-Bi Shih 2026-08-27 04:46:59 +00:00 committed by Guenter Roeck
parent aab55360fa
commit e3eceb7651
1 changed files with 1 additions and 0 deletions
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1
drivers/watchdog/msc313e_wdt.c
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@ -124,6 +124,7 @@ static int msc313e_wdt_probe(struct platform_device *pdev)
set_bit(WDOG_HW_RUNNING, &priv->wdev.status);
watchdog_set_drvdata(&priv->wdev, priv);
platform_set_drvdata(pdev, priv);
watchdog_init_timeout(&priv->wdev, timeout, dev);
watchdog_stop_on_reboot(&priv->wdev);