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| author | Lawrence Rust <lvr@softsystem.co.uk> | 2011-04-08 14:50:45 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-05-04 21:30:20 +0200 |
| commit | 2a164d02dd34c6b49a3f0995900e0f8af102b804 (patch) | |
| tree | 1b4ed3a96d4e5ce6fe6b5b226b6f4b8416811a2d | |
| parent | [media] v4l: Release module if subdev registration fails (diff) | |
| download | linux-2a164d02dd34c6b49a3f0995900e0f8af102b804.tar.xz linux-2a164d02dd34c6b49a3f0995900e0f8af102b804.zip | |
[media] Fix cx88 remote control input
In the IR interrupt handler of cx88-input.c there's a 32-bit multiply
overflow which causes IR pulse durations to be incorrectly calculated.
This is a regression caused by commit 2997137be8eba.
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/cx88/cx88-input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index c820e2f53527..3f442003623d 100644 --- a/drivers/media/video/cx88/cx88-input.c +++ b/drivers/media/video/cx88/cx88-input.c @@ -524,7 +524,7 @@ void cx88_ir_irq(struct cx88_core *core) for (todo = 32; todo > 0; todo -= bits) { ev.pulse = samples & 0x80000000 ? false : true; bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples)); - ev.duration = (bits * NSEC_PER_SEC) / (1000 * ir_samplerate); + ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate; ir_raw_event_store_with_filter(ir->dev, &ev); samples <<= bits; } |