[PATCH v1] Bluetooth: hciuart: Fix to use boolean flag with u32 type
From: Ben YoungTae Kim <hidden>
Date: 2015-08-14 05:09:42
Subsystem:
bluetooth drivers, qualcomm bluetooth driver, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Bartosz Golaszewski, Linus Torvalds
debugfs_create_bool is asking to put u32 type pointer instead of bool so that passing bool type with u32* cast will cause memory corruption to read that value since it is handled by 4 bytes instead of 1 byte inside. Signed-off-by: Ben Young Tae Kim <redacted> --- drivers/bluetooth/hci_qca.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 62e45ff..6b9b912 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c@@ -80,8 +80,8 @@ struct qca_data { spinlock_t hci_ibs_lock; /* HCI_IBS state lock */ u8 tx_ibs_state; /* HCI_IBS transmit side power state*/ u8 rx_ibs_state; /* HCI_IBS receive side power state */ - bool tx_vote; /* Clock must be on for TX */ - bool rx_vote; /* Clock must be on for RX */ + u32 tx_vote; /* Clock must be on for TX */ + u32 rx_vote; /* Clock must be on for RX */ struct timer_list tx_idle_timer; u32 tx_idle_delay; struct timer_list wake_retrans_timer;
@@ -482,10 +482,10 @@ static void qca_debugfs_init(struct hci_dev *hdev) &qca->ibs_recv_wakes); debugfs_create_u64("ibs_recv_wake_acks", mode, ibs_dir, &qca->ibs_recv_wacks); - debugfs_create_bool("tx_vote", mode, ibs_dir, (u32 *)&qca->tx_vote); + debugfs_create_bool("tx_vote", mode, ibs_dir, &qca->tx_vote); debugfs_create_u64("tx_votes_on", mode, ibs_dir, &qca->tx_votes_on); debugfs_create_u64("tx_votes_off", mode, ibs_dir, &qca->tx_votes_off); - debugfs_create_bool("rx_vote", mode, ibs_dir, (u32 *)&qca->rx_vote); + debugfs_create_bool("rx_vote", mode, ibs_dir, &qca->rx_vote); debugfs_create_u64("rx_votes_on", mode, ibs_dir, &qca->rx_votes_on); debugfs_create_u64("rx_votes_off", mode, ibs_dir, &qca->rx_votes_off); debugfs_create_u64("votes_on", mode, ibs_dir, &qca->votes_on);
--
2.0.5