2023-04-06 06:26:59

by Badhri Jagan Sridharan

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Subject: [PATCH v2 2/2] usb: gadget: udc: core: Prevent redundant calls to pullup

usb_gadget_connect calls gadget->ops->pullup without checking whether
gadget->connected was previously set. Make this symmetric to
usb_gadget_disconnect by returning early if gadget->connected is
already set.

Cc: [email protected]
Fixes: 5a1da544e572 ("usb: gadget: core: do not try to disconnect gadget if it is not connected")
Signed-off-by: Badhri Jagan Sridharan <[email protected]>
---
* Fixed commit message comments.
---
drivers/usb/gadget/udc/core.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 41d3a1998cff..f18a5ef7e6ab 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -702,6 +702,9 @@ int usb_gadget_connect_locked(struct usb_gadget *gadget)
goto out;
}

+ if (gadget->connected)
+ goto out;
+
if (gadget->deactivated || !gadget->udc->started) {
/*
* If gadget is deactivated we only save new state.
--
2.40.0.348.gf938b09366-goog