| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.12 102/118] sc1200_wdt: Fix oops | Date | Wed, 18 Dec 2013 13:12:19 -0800 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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From: Alan <gnomes@lxorguk.ukuu.org.uk>
commit dace8bbfccfd9e4fcccfffcfbd82881fda3e756f upstream.
If loaded with isapnp = 0 the driver explodes. This is catching people out now and then. What should happen in the working case is a complete mystery and the code appears terminally confused, but we can at least make the error path work properly.
Signed-off-by: Alan Cox <alan@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Partially-Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=53991 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/watchdog/sc1200wdt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/watchdog/sc1200wdt.c +++ b/drivers/watchdog/sc1200wdt.c @@ -409,8 +409,9 @@ static int __init sc1200wdt_init(void) #if defined CONFIG_PNP /* now that the user has specified an IO port and we haven't detected * any devices, disable pnp support */ + if (isapnp) + pnp_unregister_driver(&scl200wdt_pnp_driver); isapnp = 0; - pnp_unregister_driver(&scl200wdt_pnp_driver); #endif if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
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