mdev: fix non-working device deletion, add a test for that
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/util-linux/mdev.c b/util-linux/mdev.c
index b4042c0..cd6c1a8 100644
--- a/util-linux/mdev.c
+++ b/util-linux/mdev.c
@@ -132,6 +132,7 @@
major = -1;
}
}
+ /* else: for delete, -1 still deletes the node, but < -1 suppresses that */
/* Determine device name, type, major and minor */
device_name = (char*) bb_basename(path);
@@ -279,7 +280,7 @@
if (aliaslink == '!' && s == a+1) {
val = st;
/* "!": suppress node creation/deletion */
- major = -1;
+ major = -2;
}
else if (aliaslink == '>' || aliaslink == '=') {
val = st;
@@ -379,7 +380,7 @@
free(command);
}
- if (delete && major >= 0) {
+ if (delete && major >= -1) {
if (ENABLE_FEATURE_MDEV_RENAME && alias) {
if (aliaslink == '>')
unlink(device_name);