netdev - [PATCH NET v2 1/1] net: usb: pegasus: fix memory leak in update_eth_regs

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Message-ID: <20260106084821.3746677-1-petko.manolov@konsulko.com>
Date: Tue,  6 Jan 2026 10:48:21 +0200
From: Petko Manolov <petko.manolov@...sulko.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	stable@...r.kernel.org,
	pabeni@...hat.com,
	andrew@...n.ch,
	Petko Manolov <petkan@...leusys.com>
Subject: [PATCH NET v2 1/1] net: usb: pegasus: fix memory leak in update_eth_regs_async()

From: Petko Manolov <petkan@...leusys.com>

When asynchronously writing to the device registers and if usb_submit_urb()
fail, the code fail to release allocated to this point resources.

Fixes: 323b34963d11 ("drivers: net: usb: pegasus: fix control urb submission")
Signed-off-by: Petko Manolov <petkan@...leusys.com>
---
v2:
  - replace the auto-cleanup form with the classic kfree();

 drivers/net/usb/pegasus.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 81ca64debc5b..c514483134f0 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -168,6 +168,8 @@ static int update_eth_regs_async(pegasus_t *pegasus)
 			netif_device_detach(pegasus->net);
 		netif_err(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+		usb_free_urb(async_urb);
+		kfree(req);
 	}
 	return ret;
 }
-- 
2.52.0