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| author | Borislav Petkov <petkovbb@googlemail.com> | 2008-07-29 22:33:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-30 09:41:45 -0700 |
| commit | c389d27b5e643d745f55ffb939b1426060ba63d4 (patch) | |
| tree | aa7a4903fe58542a716a78e37d518d71727f9475 /arch/um/drivers | |
| parent | 5def9a3a22e09c99717f41ab7f07ec9e1a1f3ec8 (diff) | |
| download | op-kernel-dev-c389d27b5e643d745f55ffb939b1426060ba63d4.zip op-kernel-dev-c389d27b5e643d745f55ffb939b1426060ba63d4.tar.gz | |
8250.c: port.lock is irq-safe
serial8250_startup() doesn't disable interrupts while taking the &up->port.lock
which might race against the interrupt handler serial8250_interrupt(), which
when entered, will deadlock waiting for the lock to be released.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/drivers')
0 files changed, 0 insertions, 0 deletions
