We have places in the code where we assume that devfs is mounted on
/dev/, so enforce this path to avoid surprises.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
fs/devfs.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/devfs.c b/fs/devfs.c
index c6db25c..5c96682 100644
--- a/fs/devfs.c
+++ b/fs/devfs.c
@@ -228,6 +228,13 @@ static int devfs_stat(struct device_d *_dev, const char *filename, struct stat *
static int devfs_probe(struct device_d *dev)
{
+ struct fs_device_d *fsdev = dev_to_fs_device(dev);
+
+ if (strcmp(fsdev->path, "/dev")) {
+ dev_err(dev, "devfs can only be mounted on /dev/\n");
+ return -EINVAL;
+ }
+
return 0;
}
--
2.6.0
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