]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
usb: chaoskey: fix locking for O_NONBLOCK
authorOliver Neukum <oneukum@suse.com>
Thu, 30 Oct 2025 09:39:06 +0000 (10:39 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Dec 2025 13:03:10 +0000 (14:03 +0100)
commit3681b60224e895c2c23da32506f365ef80301f78
treecf4170f2f577b9241a5c6d152178ab34ad0156f3
parent32952c4f4d1b2deb30dce72ba109da808a9018e1
usb: chaoskey: fix locking for O_NONBLOCK

[ Upstream commit a2fa8a12e6bc9d89c0505b8dd7ae38ec173d25de ]

A failure to take a lock with O_NONBLOCK needs to result
in -EAGAIN. Change it.

Fixes: 66e3e591891da ("usb: Add driver for Altus Metrum ChaosKey device (v2)")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20251030093918.2248104-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/misc/chaoskey.c