From: Ben YoungTae Kim <ytkim@qca.qualcomm.com>
To: <linux-bluetooth@vger.kernel.org>
Subject: [PATCH v1] Bluetooth: hciuart: Fix to use boolean flag with u32 type
Date: Thu, 13 Aug 2015 22:09:42 -0700 [thread overview]
Message-ID: <55CD7816.8090305@qualcomm.com> (raw)
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 <ytkim@qca.qualcomm.com>
---
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
next reply other threads:[~2015-08-14 5:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-14 5:09 Ben YoungTae Kim [this message]
2015-08-14 6:56 ` [PATCH v1] Bluetooth: hciuart: Fix to use boolean flag with u32 type Marcel Holtmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55CD7816.8090305@qualcomm.com \
--to=ytkim@qca.qualcomm.com \
--cc=linux-bluetooth@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox