]> 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 05:50:52 +0000 (07:50 +0200)
commit4b0369c53088c2ca2c94b9cc5d843a059456467e
tree2985e2b3a26061cdd662b40b43ee4f87951c801b
parent54f7f8978af19f899dec80bcc71c8d4855dfbd72
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