An automount command that returns successfully but doesn't mount
anything makes barebox hang as can be reproduced with:
automount -d /mnt/foo true
ls /mnt/foo
Check if the current dentry is a mountpoint after running the automount
command, otherwise return with an error from automount_mount().
Reported-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
fs/fs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/fs.c b/fs/fs.c
index 460fc2f7f1..bd6f144742 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -3191,6 +3191,10 @@ static int automount_mount(struct dentry *dentry)
printf("running automount command '%s' failed\n",
am->cmd);
ret = -ENODEV;
+ } else if (!(dentry->d_flags & DCACHE_MOUNTED)) {
+ printf("automount command '%s' didn't mount anything\n",
+ am->cmd);
+ ret = -ENODEV;
}
break;
--
2.30.2
