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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-09 11:39:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-10 19:57:21 +0200 |
| commit | 8562d5bfc0fcdfd3aef32991e17dca585ae5ae7d (patch) | |
| tree | 4c4a78b4b99daf91f906cfd57e6e178b124105ba /drivers/usb/dwc3/gadget.c | |
| parent | usb: ehci: do not initialise static variables (diff) | |
| download | linux-dev-8562d5bfc0fcdfd3aef32991e17dca585ae5ae7d.tar.xz linux-dev-8562d5bfc0fcdfd3aef32991e17dca585ae5ae7d.zip | |
USB: dwc3: remove debugfs root dentry storage
There is no need to keep around the debugfs "root" directory for the
dwc3 device. Instead, look it up anytime we need to find it. This will
help when callers get out-of-order and we had the potential to have a
"stale" pointer around for the root dentry, as has happened in the past.
Tested-by: Jack Pham <jackp@codeaurora.org>
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20210609093924.3293230-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 7cc99b6d0bfe..026a2ad0fc80 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2799,7 +2799,9 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) list_del(&dep->endpoint.ep_list); } - debugfs_remove_recursive(debugfs_lookup(dep->name, dwc->root)); + debugfs_remove_recursive(debugfs_lookup(dep->name, + debugfs_lookup(dev_name(dep->dwc->dev), + usb_debug_root))); kfree(dep); } } |