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Tomas Winkler d692170037 watchdog: mei: avoid oops in watchdog unregister code path ... With commit c7d3df3 "mei: use internal watchdog device registration tracking" will crash the kernel on shutdown path on systems where ME watchdog is not present. Since the watchdog was never initialized in such case the WDOG_UNREGISTERED bit is never set and the system crashes on access to uninitialized variables down the path. To solve the issue we query for NULL on watchdog driver driver_data to check whether the device is registered. This is handled in the driver and doesn't depend on watchdog core internals. Cc: Borislav Petkov <bp@alien8.de> Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: Jerry Snitselaar <jerry.snitselaar@oracle.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>		12 years ago
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Kconfig	…
Makefile	…
amthif.c	…
hw.h	…
init.c	…
interface.c	…
interface.h	…
interrupt.c	…
iorw.c	…
main.c	…
mei_dev.h	…
wd.c	watchdog: mei: avoid oops in watchdog unregister code path	12 years ago