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core/path: use automatic cleanup

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... and fix bogus return code on malloc failure.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2013-03-01 17:58:56 -05:00
parent f8c16f42fb
commit a163db4419
1 changed files with 7 additions and 14 deletions
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21
src/core/path.c
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@ -118,7 +118,7 @@ void path_spec_unwatch(PathSpec *s, Unit *u) {
}
int path_spec_fd_event(PathSpec *s, uint32_t events) {
uint8_t *buf = NULL;
uint8_t _cleanup_free_ *buf = NULL;
struct inotify_event *e;
ssize_t k;
int l;
@ -126,30 +126,24 @@ int path_spec_fd_event(PathSpec *s, uint32_t events) {
if (events != EPOLLIN) {
log_error("Got invalid poll event on inotify.");
r = -EINVAL;
goto out;
return -EINVAL;
}
if (ioctl(s->inotify_fd, FIONREAD, &l) < 0) {
log_error("FIONREAD failed: %m");
r = -errno;
goto out;
return -errno;
}
assert(l > 0);
buf = malloc(l);
if (!buf) {
log_error("Failed to allocate buffer: %m");
r = -errno;
goto out;
}
if (!buf)
return log_oom();
k = read(s->inotify_fd, buf, l);
if (k < 0) {
log_error("Failed to read inotify event: %m");
r = -errno;
goto out;
return -errno;
}
e = (struct inotify_event*) buf;
@ -167,8 +161,7 @@ int path_spec_fd_event(PathSpec *s, uint32_t events) {
e = (struct inotify_event*) ((uint8_t*) e + step);
k -= step;
}
out:
free(buf);
return r;
}