From: carl.yin@quectel.com
To: manivannan.sadhasivam@linaro.org, hemantk@codeaurora.org,
sfr@canb.auug.org.au
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
carl.yin@quectel.com, naveen.kumar@quectel.com
Subject: [PATCH v2] bus: mhi: core: Fix null pointer access when parsing MHI configuration
Date: Mon, 2 Nov 2020 20:27:10 +0800 [thread overview]
Message-ID: <20201102122710.23406-1-carl.yin@quectel.com> (raw)
From: "carl.yin" <carl.yin@quectel.com>
Functions parse_ev_cfg() and parse_ch_cfg() access mhi_cntrl->mhi_dev
before it is set in function mhi_register_controller(),
use cntrl_dev instead of mhi_dev.
Fixes: 0cbf260820fa ("bus: mhi: core: Add support for registering MHI controllers")
Signed-off-by: carl.yin <carl.yin@quectel.com>
Reviewed-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
---
drivers/bus/mhi/core/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index 0ffdebd..c6b43e9 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -610,7 +610,7 @@ static int parse_ev_cfg(struct mhi_controller *mhi_cntrl,
{
struct mhi_event *mhi_event;
const struct mhi_event_config *event_cfg;
- struct device *dev = &mhi_cntrl->mhi_dev->dev;
+ struct device *dev = mhi_cntrl->cntrl_dev;
int i, num;
num = config->num_events;
@@ -692,7 +692,7 @@ static int parse_ch_cfg(struct mhi_controller *mhi_cntrl,
const struct mhi_controller_config *config)
{
const struct mhi_channel_config *ch_cfg;
- struct device *dev = &mhi_cntrl->mhi_dev->dev;
+ struct device *dev = mhi_cntrl->cntrl_dev;
int i;
u32 chan;
--
2.25.1
next reply other threads:[~2020-11-02 12:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-02 12:27 carl.yin [this message]
2020-11-03 22:05 ` [PATCH v2] bus: mhi: core: Fix null pointer access when parsing MHI configuration Hemant Kumar
2020-11-05 16:05 ` Manivannan Sadhasivam
2020-11-09 12:01 ` Manivannan Sadhasivam
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=20201102122710.23406-1-carl.yin@quectel.com \
--to=carl.yin@quectel.com \
--cc=hemantk@codeaurora.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=manivannan.sadhasivam@linaro.org \
--cc=naveen.kumar@quectel.com \
--cc=sfr@canb.auug.org.au \
/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;
as well as URLs for NNTP newsgroup(s).