6.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomasz Pakuła tomasz.pakula.oficjalny@gmail.com
[ Upstream commit 0c6673e3d17b258b8c5c7331d28bf6c49f25ed30 ]
Ensures the loop count will never exceed the logical_maximum.
Fixes implementation errors happening when applications use the max value of int32/DWORD as the effect iterations. This could be observed when running software both native and in wine.
Signed-off-by: Tomasz Pakuła tomasz.pakula.oficjalny@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/usbhid/hid-pidff.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c index ffecc712be003..74b033a4ac1b8 100644 --- a/drivers/hid/usbhid/hid-pidff.c +++ b/drivers/hid/usbhid/hid-pidff.c @@ -690,7 +690,8 @@ static void pidff_playback_pid(struct pidff_device *pidff, int pid_id, int n) } else { pidff->effect_operation_status->value[0] = pidff->operation_id[PID_EFFECT_START]; - pidff->effect_operation[PID_LOOP_COUNT].value[0] = n; + pidff->effect_operation[PID_LOOP_COUNT].value[0] = + pidff_clamp(n, pidff->effect_operation[PID_LOOP_COUNT].field); }
hid_hw_request(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],