libudev: do not accept invalid log levels

Invalid log levels lead to a assert failure later on.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/libudev/libudev.c b/src/libudev/libudev.c
index beb9a65481..5d3ad50411 100644
--- a/src/libudev/libudev.c
+++ b/src/libudev/libudev.c
@@ -192,7 +192,13 @@ _public_ struct udev *udev_new(void)
                         }
 
                         if (streq(key, "udev_log")) {
-                                udev_set_log_priority(udev, util_log_priority(val));
+                                int prio;
+
+                                prio = util_log_priority(val);
+                                if (prio < 0)
+                                        udev_err(udev, "/etc/udev/udev.conf:%u: invalid logging level '%s', ignoring.\n", line_nr, val);
+                                else
+                                        udev_set_log_priority(udev, prio);
                                 continue;
                         }
                 }