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sc1200_wdt: Fix oops

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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
This commit is contained in:
Alan 2013-12-04 15:31:52 +00:00 committed by Wim Van Sebroeck
parent 9539210e17
commit dace8bbfcc
1 changed files with 2 additions and 1 deletions
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3
drivers/watchdog/sc1200wdt.c
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@ -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)) {