From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: jic23@kernel.org
Cc: linux-iio@vger.kernel.org,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH] iio: imu: inv_mpu6050: Prevent dereferencing NULL
Date: Fri, 9 Jan 2015 15:13:37 -0800 [thread overview]
Message-ID: <1420845217-16920-1-git-send-email-srinivas.pandruvada@linux.intel.com> (raw)
When id is null, with ACPI enumeration, don't dereference it.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index f73e60b..d8d5bed 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -780,7 +780,11 @@ static int inv_mpu_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
indio_dev->dev.parent = &client->dev;
- indio_dev->name = id->name;
+ /* id will be NULL when enumerated via ACPI */
+ if (id)
+ indio_dev->name = (char *)id->name;
+ else
+ indio_dev->name = (char *)dev_name(&client->dev);
indio_dev->channels = inv_mpu_channels;
indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
--
1.9.3
next reply other threads:[~2015-01-09 23:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-09 23:13 Srinivas Pandruvada [this message]
2015-01-10 22:08 ` [PATCH] iio: imu: inv_mpu6050: Prevent dereferencing NULL Jonathan Cameron
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