]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context
authorOliver Neukum <oneukum@suse.com>
Tue, 1 Apr 2025 08:45:40 +0000 (10:45 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 2 May 2025 05:47:00 +0000 (07:47 +0200)
commite0917befd1a0fc7f19a1e24a1a1128bb1da6e554
treed63ab0bba4acc619c8d45829bc2e291fce48bc18
parent217fe1fc7d112595a793e02b306710e702eac492
USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context

commit 1fdc4dca350c0b8ada0b8ebf212504e1ad55e511 upstream.

wdm_wwan_port_tx_complete is called from a completion
handler with irqs disabled and possible in IRQ context
usb_autopm_put_interface can take a mutex.
Hence usb_autopm_put_interface_async must be used.

Fixes: cac6fb015f71 ("usb: class: cdc-wdm: WWAN framework integration")
Cc: stable <stable@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20250401084749.175246-4-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-wdm.c