The debugfs_lookup() function returns a dentry with an increased reference count that must be released by calling dput().
Fixes: d0f1e0c2a699 ("thunderbolt: Add support for receiver lane margining") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin linmq006@gmail.com --- drivers/thunderbolt/debugfs.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c index f8328ca7e22e..2aadbec9a3e5 100644 --- a/drivers/thunderbolt/debugfs.c +++ b/drivers/thunderbolt/debugfs.c @@ -1770,6 +1770,7 @@ static void margining_port_init(struct tb_port *port) port->usb4->margining = margining_alloc(port, &port->usb4->dev, USB4_SB_TARGET_ROUTER, 0, parent); + dput(parent); }
static void margining_port_remove(struct tb_port *port)
On Mon, Sep 01, 2025 at 04:04:37PM +0800, Miaoqian Lin wrote:
The debugfs_lookup() function returns a dentry with an increased reference count that must be released by calling dput().
Don't we need the same for margining_port_remove() too?
Fixes: d0f1e0c2a699 ("thunderbolt: Add support for receiver lane margining") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin linmq006@gmail.com
drivers/thunderbolt/debugfs.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c index f8328ca7e22e..2aadbec9a3e5 100644 --- a/drivers/thunderbolt/debugfs.c +++ b/drivers/thunderbolt/debugfs.c @@ -1770,6 +1770,7 @@ static void margining_port_init(struct tb_port *port) port->usb4->margining = margining_alloc(port, &port->usb4->dev, USB4_SB_TARGET_ROUTER, 0, parent);
- dput(parent);
} static void margining_port_remove(struct tb_port *port) -- 2.35.1
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Miaoqian Lin -
Mika Westerberg