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| author | Kim, Milo <Milo.Kim@ti.com> | 2012-09-14 02:24:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2012-09-15 10:27:40 +0100 |
| commit | 2cc412b513f70ce914a3554a34917f7585a16f04 (patch) | |
| tree | b076eb83f3e156ffb194a691a4890c4aa15e38c8 /drivers/iio/inkern.c | |
| parent | 7985e7c1003bc5cdfa20755f8cfdada946ed8e18 (diff) | |
| download | op-kernel-dev-2cc412b513f70ce914a3554a34917f7585a16f04.zip op-kernel-dev-2cc412b513f70ce914a3554a34917f7585a16f04.tar.gz | |
iio: inkern: allocate zeroed memory
Use kzalloc() rather than kmalloc() for initializing the iio_channel structure.
This patch enables the iio_dev and iio_chan_spec are set to NULL.
This may prevent the page fault problem because the pointer of iio_chan_spec
is initialized as NULL.
The iio_chan_spec is updated only in case that the IIO map has
specific channel label.
When the map has no ADC channel label, then the value of iio_chan_spec
remains as invalid pointer.
To prevent this problem, the pointer should be initialized as NULL.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/inkern.c')
| -rw-r--r-- | drivers/iio/inkern.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index a14e55d..028c657 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -130,7 +130,7 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name) if (c == NULL) return ERR_PTR(-ENODEV); - channel = kmalloc(sizeof(*channel), GFP_KERNEL); + channel = kzalloc(sizeof(*channel), GFP_KERNEL); if (channel == NULL) return ERR_PTR(-ENOMEM); |
