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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2015-09-05 10:19:38 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-09-19 11:39:47 -0700
commit46b018fa95003f8159f5fcf9b8cd89acaea34e31 (patch)
tree86b78db1b1d894690e6fe798805eef295cc67650 /drivers/input
parent86a39bffc4e94f80527c14fe00a3acb432910ef3 (diff)
downloadlinux-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.c4
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;