ssize_t l = write(c->rfkill_fd, &we, sizeof we);
if (l < 0)
return log_error_errno(errno, "Failed to restore rfkill state for %i: %m", event->idx);
- if (l < RFKILL_EVENT_SIZE_V1)
+ if ((size_t)l < RFKILL_EVENT_SIZE_V1) /* l cannot be < 0 here. Cast to fix -Werror=sign-compare */
return log_error_errno(SYNTHETIC_ERRNO(EIO),
"Couldn't write rfkill event structure, too short (wrote %zd of %zu bytes).",
l, sizeof we);
break;
}
- if (l < RFKILL_EVENT_SIZE_V1)
- return log_error_errno(SYNTHETIC_ERRNO(EIO), "Short read of struct rfkill_event: (%zd < %d)",
- l, RFKILL_EVENT_SIZE_V1);
+ if ((size_t)l < RFKILL_EVENT_SIZE_V1) /* l cannot be < 0 here. Cast to fix -Werror=sign-compare */
+ return log_error_errno(SYNTHETIC_ERRNO(EIO), "Short read of struct rfkill_event: (%zd < %zu)",
+ l, (size_t) RFKILL_EVENT_SIZE_V1); /* Casting necessary to make compiling with different kernel versions happy */
log_debug("Reading struct rfkill_event: got %zd bytes.", l);
/* The event structure has more fields. We only care about the first few, so it's OK if we