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watchdog: iTCO_wdt: Fix detection of SMI-off case
commit aec4264 upstream. Obviously, the test needs to run against the register content, not its address. Fixes: cb01104 ("watchdog: iTCO_wdt: Account for rebooting on second timeout") Cc: stable@vger.kernel.org Reported-by: Mantas Mikulėnas <grawity@gmail.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Mantas Mikulėnas <grawity@gmail.com> Link: https://lore.kernel.org/r/d84f8e06-f646-8b43-d063-fb11f4827044@siemens.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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