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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-30 02:22:15 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-31 14:32:17 -0400
commit7a2262061252a33f6f0a009e89556fbee5b0cb41 (patch)
tree3f1412fd1e1b7fb70b4d4f632c6da60b3aabf669 /src/udev/accelerometer
parentcbb21cca098f9063b0ff5548b2c73ab517f55ea5 (diff)
accelerometer: remove dead if and modernize
Based on a coverity warning.
Diffstat (limited to 'src/udev/accelerometer')
-rw-r--r--src/udev/accelerometer/accelerometer.c35
1 files changed, 14 insertions, 21 deletions
diff --git a/src/udev/accelerometer/accelerometer.c b/src/udev/accelerometer/accelerometer.c
index f50db71a76..b6913b46f8 100644
--- a/src/udev/accelerometer/accelerometer.c
+++ b/src/udev/accelerometer/accelerometer.c
@@ -46,6 +46,7 @@
#include <stdio.h>
#include <string.h>
+#include <stdbool.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
@@ -178,7 +179,7 @@ get_prev_orientation(struct udev_device *dev)
return string_to_orientation(value);
}
-#define SET_AXIS(axis, code_) if (ev[i].code == code_) { if (got_##axis == 0) { axis = ev[i].value; got_##axis = 1; } }
+#define SET_AXIS(axis, code_) if (ev[i].code == code_) { if (got_##axis == 0) { axis = ev[i].value; got_##axis = true; } }
/* accelerometers */
static void test_orientation(struct udev *udev,
@@ -186,54 +187,46 @@ static void test_orientation(struct udev *udev,
const char *devpath)
{
OrientationUp old, new;
- int fd, r;
+ int _cleanup_close_ fd = -1;
struct input_event ev[64];
- int got_syn = 0;
- int got_x, got_y, got_z;
+ bool got_syn = false;
+ bool got_x = false, got_y = false, got_z = false;
int x = 0, y = 0, z = 0;
char text[64];
old = get_prev_orientation(dev);
- if ((fd = open(devpath, O_RDONLY)) < 0)
+ fd = open(devpath, O_RDONLY);
+ if (fd < 0)
return;
- got_x = got_y = got_z = 0;
-
while (1) {
- int i;
+ int i, r;
r = read(fd, ev, sizeof(struct input_event) * 64);
- if (r < (int) sizeof(struct input_event)) {
- close(fd);
+ if (r < (int) sizeof(struct input_event))
return;
- }
for (i = 0; i < r / (int) sizeof(struct input_event); i++) {
- if (got_syn == 1) {
+ if (got_syn) {
if (ev[i].type == EV_ABS) {
SET_AXIS(x, ABS_X);
SET_AXIS(y, ABS_Y);
SET_AXIS(z, ABS_Z);
}
}
- if (ev[i].type == EV_SYN && ev[i].code == SYN_REPORT) {
- got_syn = 1;
- }
+ if (ev[i].type == EV_SYN && ev[i].code == SYN_REPORT)
+ got_syn = true;
if (got_x && got_y && got_z)
goto read_dev;
}
}
read_dev:
- close(fd);
-
- if (!got_x || !got_y || !got_z)
- return;
-
new = orientation_calc(old, x, y, z);
- snprintf(text, sizeof(text), "ID_INPUT_ACCELEROMETER_ORIENTATION=%s", orientation_to_string(new));
+ snprintf(text, sizeof(text),
+ "ID_INPUT_ACCELEROMETER_ORIENTATION=%s", orientation_to_string(new));
puts(text);
}