Recent change brings potential leak of value on kernel stack to userspace
due to uninitialized value.
This commit fixes the bug.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: baa914cd81f ("firewire: add kernel API to access CYCLE_TIME register")
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
drivers/firewire/core-cdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 8e9670036e5c..032ee56c34a3 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -1211,7 +1211,7 @@ static int ioctl_get_cycle_timer2(struct client *client, union ioctl_arg *arg)
struct fw_cdev_get_cycle_timer2 *a = &arg->get_cycle_timer2;
struct fw_card *card = client->device->card;
struct timespec64 ts = {0, 0};
- u32 cycle_time;
+ u32 cycle_time = 0;
int ret = 0;
local_irq_disable();
--
2.34.1
