diff --git a/src/lxc/console.c b/src/lxc/console.c
index 55e895cdf..6bfc8a34c 100644
--- a/src/lxc/console.c
+++ b/src/lxc/console.c
@@ -116,7 +116,7 @@ static int lxc_console_cb_sigwinch_fd(int fd, uint32_t events, void *cbdata,
 	struct signalfd_siginfo siginfo;
 	struct lxc_tty_state *ts = cbdata;
 
-	if (read(fd, &siginfo, sizeof(siginfo)) < 0) {
+	if (read(fd, &siginfo, sizeof(siginfo)) < sizeof(siginfo)) {
 		ERROR("failed to read signal info");
 		return -1;
 	}
diff --git a/src/lxc/lxcutmp.c b/src/lxc/lxcutmp.c
index 24cfa7589..ba65654ad 100644
--- a/src/lxc/lxcutmp.c
+++ b/src/lxc/lxcutmp.c
@@ -167,7 +167,7 @@ static int utmp_handler(int fd, uint32_t events, void *data,
 		return -1;
 	}
 
-	if (read(fd, buffer, size) < 0) {
+	if (read(fd, buffer, size) < size) {
 		SYSERROR("failed to read notification");
 		return -1;
 	}