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authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>2016-03-18 00:21:27 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-18 01:09:34 +0300
commitadaf6590ee7db23c3a124fb9f213c90c15cecf96 (patch)
tree40b3a1fc2ba5871dab98e0200eae76c09a72156a /Documentation/kdump
parent6b97a20d3a7909daa06625d4440c2c52d7bf08d7 (diff)
downloadlinux-adaf6590ee7db23c3a124fb9f213c90c15cecf96.tar.xz
printk: check CON_ENABLED in have_callable_console()
have_callable_console() must also test CON_ENABLED bit, not just CON_ANYTIME. We may have disabled CON_ANYTIME console so printk can wrongly assume that it's safe to call_console_drivers(). Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Jan Kara <jack@suse.com> Cc: Tejun Heo <tj@kernel.org> Cc: Kyle McMartin <kyle@kernel.org> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Calvin Owens <calvinowens@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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