Commit 46b018fa authored by Dmitry Torokhov's avatar Dmitry Torokhov

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: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 86a39bff
...@@ -150,7 +150,7 @@ static void walkera0701_irq_handler(void *handler_data) ...@@ -150,7 +150,7 @@ static void walkera0701_irq_handler(void *handler_data)
if (w->counter == 24) { /* full frame */ if (w->counter == 24) { /* full frame */
walkera0701_parse_frame(w); walkera0701_parse_frame(w);
w->counter = NO_SYNC; 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; w->counter = 0;
} else { } else {
if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE) if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE)
...@@ -161,7 +161,7 @@ static void walkera0701_irq_handler(void *handler_data) ...@@ -161,7 +161,7 @@ static void walkera0701_irq_handler(void *handler_data)
} else } else
w->counter = NO_SYNC; 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 .. */ RESERVE + BIN1_PULSE - BIN0_PULSE) /* frame sync .. */
w->counter = 0; w->counter = 0;
......
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