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| author | Ingo Molnar <mingo@elte.hu> | 2006-06-26 15:26:13 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-26 15:26:13 +0100 |
| commit | cfc736564fd01ee008d746913b1bbb90e3eb1f99 (patch) | |
| tree | 6192a27c1ace4bf76795dadadbe1eb63cbe47429 /Documentation/arm | |
| parent | cd701aa27e4cfab5c99c7da13d404b1f3a0aecfb (diff) | |
[ARM] fix drivers/mfd/ucb1x00-core.c IRQ probing bug
While reviewing the IRQ autoprobing code i found the attached buglet.
probe_irq_on()/off() calls must always be in pairs, because the generic IRQ
code uses a global semaphore to serialize all autoprobing activites.
(which does make sense) The ARM code's probe_irq_*() implementation does
not do this, but if this driver is ever used on another platform, this bug
might bite.
(It probably does not trigger in practice, because a zero probing mask
returned should be rare - but still.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'Documentation/arm')
0 files changed, 0 insertions, 0 deletions