linux-kernel - [PATCH] platform/chrome: fix crash during suspend

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Date:   Wed, 29 May 2019 21:03:54 -0700
From:   Hyungwoo Yang <hyungwoo.yang@...el.com>
To:     enric.balletbo@...labora.com
Cc:     linux-kernel@...r.kernel.org, rushikesh.s.kadam@...el.com,
        jettrink@...omium.org
Subject: [PATCH] platform/chrome: fix crash during suspend

Kernel crashes during suspend due to wrong conversion in
suspend and resume functions.

Use the proper helper to get ishtp_cl_device instance.

Signed-off-by: Hyungwoo Yang <hyungwoo.yang@...el.com>
---
 drivers/platform/chrome/cros_ec_ishtp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_ishtp.c b/drivers/platform/chrome/cros_ec_ishtp.c
index e504d25..430731c 100644
--- a/drivers/platform/chrome/cros_ec_ishtp.c
+++ b/drivers/platform/chrome/cros_ec_ishtp.c
@@ -707,7 +707,7 @@ static int cros_ec_ishtp_reset(struct ishtp_cl_device *cl_device)
  */
 static int __maybe_unused cros_ec_ishtp_suspend(struct device *device)
 {
-	struct ishtp_cl_device *cl_device = dev_get_drvdata(device);
+	struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
 	struct ishtp_cl	*cros_ish_cl = ishtp_get_drvdata(cl_device);
 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
 
@@ -722,7 +722,7 @@ static int __maybe_unused cros_ec_ishtp_suspend(struct device *device)
  */
 static int __maybe_unused cros_ec_ishtp_resume(struct device *device)
 {
-	struct ishtp_cl_device *cl_device = dev_get_drvdata(device);
+	struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
 	struct ishtp_cl	*cros_ish_cl = ishtp_get_drvdata(cl_device);
 	struct ishtp_cl_data *client_data = ishtp_get_client_data(cros_ish_cl);
 
-- 
1.9.1