AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[media] Fix cx88 remote control input

Browse Source 
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 2997137be8.

Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Lawrence Rust 2011-04-08 09:50:45 -03:00 committed by Mauro Carvalho Chehab
parent b7534f002d
commit 2a164d02dd
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/video/cx88/cx88-input.c
View File

@ -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;
}