From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org
Subject: [PATCH] slimbus: fix a NULL pointer dereference in of_qcom_slim_ngd_register
Date: Sat, 13 Apr 2019 11:34:47 +0100 [thread overview]
Message-ID: <20190413103447.10011-1-srinivas.kandagatla@linaro.org> (raw)
From: Kangjie Lu <kjlu@umn.edu>
In case platform_device_alloc fails, the fix returns an error
code to avoid the NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index 71f094c9ec68..f3585777324c 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1342,6 +1342,10 @@ static int of_qcom_slim_ngd_register(struct device *parent,
return -ENOMEM;
ngd->pdev = platform_device_alloc(QCOM_SLIM_NGD_DRV_NAME, id);
+ if (!ngd->pdev) {
+ kfree(ngd);
+ return -ENOMEM;
+ }
ngd->id = id;
ngd->pdev->dev.parent = parent;
ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME;
--
2.21.0
next reply other threads:[~2019-04-13 10:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-13 10:34 Srinivas Kandagatla [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-03-15 6:20 [PATCH] slimbus: fix a NULL pointer dereference in of_qcom_slim_ngd_register Kangjie Lu
2019-03-20 14:52 ` Srinivas Kandagatla
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