tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
lockdep: Fix wrong assumption in match_held_lock

Linus Torvalds 2da9f365 950d0a10

+7 -1
+7 -1
kernel/lockdep.c
··· 3111 3111 if (!class) 3112 3112 class = look_up_lock_class(lock, 0); 3113 3113 3114 - if (DEBUG_LOCKS_WARN_ON(!class)) 3114 + /* 3115 + * If look_up_lock_class() failed to find a class, we're trying 3116 + * to test if we hold a lock that has never yet been acquired. 3117 + * Clearly if the lock hasn't been acquired _ever_, we're not 3118 + * holding it either, so report failure. 3119 + */ 3120 + if (!class) 3115 3121 return 0; 3116 3122 3117 3123 if (DEBUG_LOCKS_WARN_ON(!hlock->nest_lock))