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authorKim, Milo <Milo.Kim@ti.com>2012-09-14 02:24:00 +0100
committerJonathan Cameron <jic23@kernel.org>2012-09-15 10:27:40 +0100
commit2cc412b513f70ce914a3554a34917f7585a16f04 (patch)
treeb076eb83f3e156ffb194a691a4890c4aa15e38c8 /drivers/iio
parent7985e7c1003bc5cdfa20755f8cfdada946ed8e18 (diff)
downloadlinux-2cc412b513f70ce914a3554a34917f7585a16f04.tar.bz2
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')
-rw-r--r--drivers/iio/inkern.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index a14e55dd8ddc..028c657f8da3 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);