mount: Fix the printing of device name

Mount without argument always print a "none" as device name mounted
because entry->parent_device is always NULL.

The problem is the mount function in fs/fs.c. parent_device is
initialized to NULL and never updated. With this patch,
parent_device is set with the mounted device name.

Moreover, the mount function has been modified to print the device
name plus device id using the dev_name function.

Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/fs.c b/fs/fs.c
index 56b822b6a0..13df71c923 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -743,6 +743,7 @@ int mount(const char *device, const char *fsname, const char *_path)
 	struct mtab_entry *entry;
 	struct fs_device_d *fsdev;
 	struct device_d *dev, *parent_device = NULL;
+	struct cdev *cdev = NULL;
 	int ret;
 	char *path = normalise_path(_path);
 
@@ -808,6 +809,12 @@ int mount(const char *device, const char *fsname, const char *_path)
 		goto out2;
 	}
 
+	if (!strncmp(device, "/dev/", 5)) {
+		cdev = cdev_by_name(device + 5);
+		if(cdev)
+			parent_device = cdev->dev;
+	}
+
 	if (parent_device)
 		dev_add_child(parent_device, &fsdev->dev);