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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-05 10:19:38 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-19 11:39:47 -0700 |
| commit | 46b018fa95003f8159f5fcf9b8cd89acaea34e31 (patch) | |
| tree | 86b78db1b1d894690e6fe798805eef295cc67650 /drivers/input | |
| parent | 86a39bffc4e94f80527c14fe00a3acb432910ef3 (diff) | |
| download | linux-46b018fa95003f8159f5fcf9b8cd89acaea34e31.tar.bz2 | |
Input: walkera0701 - fix abs() calculations on 64 bit values
abs() function can not be used with 64 bit values, so let's switch to
abs64(). From include/linux/kernel.h:
/*
* abs() handles unsigned and signed longs, ints, shorts and chars.
* For all input types abs() returns a signed long.
* abs() should not be used for 64-bit types (s64, u64, long long)
* - use abs64() for those.
*/
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/joystick/walkera0701.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c index b76ac580703c..a8bc2fe170dd 100644 --- a/drivers/input/joystick/walkera0701.c +++ b/drivers/input/joystick/walkera0701.c @@ -150,7 +150,7 @@ static void walkera0701_irq_handler(void *handler_data) if (w->counter == 24) { /* full frame */ walkera0701_parse_frame(w); w->counter = NO_SYNC; - if (abs(pulse_time - SYNC_PULSE) < RESERVE) /* new frame sync */ + if (abs64(pulse_time - SYNC_PULSE) < RESERVE) /* new frame sync */ w->counter = 0; } else { if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE) @@ -161,7 +161,7 @@ static void walkera0701_irq_handler(void *handler_data) } else w->counter = NO_SYNC; } - } else if (abs(pulse_time - SYNC_PULSE - BIN0_PULSE) < + } else if (abs64(pulse_time - SYNC_PULSE - BIN0_PULSE) < RESERVE + BIN1_PULSE - BIN0_PULSE) /* frame sync .. */ w->counter = 0; |