diff options
| author | Johan Hovold <johan@kernel.org> | 2026-03-27 12:32:19 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-04-07 12:34:52 +0200 |
| commit | 25369b22223d1c56e42a0cd4ac9137349d5a898e (patch) | |
| tree | 685d71fed71a61e1060db2532299283140eea552 /drivers | |
| parent | 304950a467d83678bd0b0f46331882e2ac23b12d (diff) | |
| download | lwn-25369b22223d1c56e42a0cd4ac9137349d5a898e.tar.gz lwn-25369b22223d1c56e42a0cd4ac9137349d5a898e.zip | |
wifi: rt2x00usb: fix devres lifetime
USB drivers bind to USB interfaces and any device managed resources
should have their lifetime tied to the interface rather than parent USB
device. This avoids issues like memory leaks when drivers are unbound
without their devices being physically disconnected (e.g. on probe
deferral or configuration changes).
Fix the USB anchor lifetime so that it is released on driver unbind.
Fixes: 8b4c0009313f ("rt2x00usb: Use usb anchor to manage URB")
Cc: stable@vger.kernel.org # 4.7
Cc: Vishal Thanki <vishalthanki@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260327113219.1313748-1-johan@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c index 54599cad78f9..aa5ecade2a40 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c @@ -828,7 +828,7 @@ int rt2x00usb_probe(struct usb_interface *usb_intf, if (retval) goto exit_free_device; - rt2x00dev->anchor = devm_kmalloc(&usb_dev->dev, + rt2x00dev->anchor = devm_kmalloc(&usb_intf->dev, sizeof(struct usb_anchor), GFP_KERNEL); if (!rt2x00dev->anchor) { |