From: Timur Tabi Date: Fri, 3 Dec 2010 16:51:43 +0000 (-0600) Subject: watchdog: add CONFIG_WATCHDOG_NOWAYOUT support to PowerPC Book-E watchdog driver X-Git-Tag: v2.6.38-rc1~240^2~9 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d63c13415db2819590bba975dd023eaa593ddc3;p=pandora-kernel.git watchdog: add CONFIG_WATCHDOG_NOWAYOUT support to PowerPC Book-E watchdog driver Normally, the watchdog is disabled when dev/watchdog is closed, but if CONFIG_WATCHDOG_NOWAYOUT is defined, then it means that the watchdog should remain enabled. So we should disable it only if CONFIG_WATCHDOG_NOWAYOUT is not defined. Also ensure that /dev/watchdog is only opened by one process at a time. That way, a second process can't accidentally disable the watchdog while the first process has it open. There shouldn't be any need for more than one process to open /dev/watchdog anyway. Signed-off-by: Timur Tabi Acked-by: Josh Boyer Signed-off-by: Wim Van Sebroeck --- Reading git-diff-tree failed