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path: root/drivers/iio/industrialio-event.c
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2012-11-17drivers/iio/industrialio-event.c: eliminate possible double freeJulia Lawall
The function __iio_add_event_config_attrs is only called once, by the function iio_device_register_eventset. If the call fails, iio_device_register_eventset calls __iio_remove_event_config_attrs. There is thus no need for __iio_add_event_config_attrs to also call __iio_remove_event_config_attrs on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier f,free,a; parameter list[n] ps; type T; expression e; @@ f(ps,T a,...) { ... when any when != a = e if(...) { ... free(a); ... return ...; } ... when any } @@ identifier r.f,r.free; expression x,a; expression list[r.n] xs; @@ * x = f(xs,a,...); if (...) { ... free(a); ... return ...; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: Use strict_strtouint instead of kstrtoulLars-Peter Clausen
strict_strto* has been deprecated in favor of kstrto*. Use strict_strtouint respective strict_strtoint, since that is what the functions we pass the converted values to expect. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-07-08iio: Fix unitialized use of listSascha Hauer
The dev_attr list is initialized in __iio_add_event_config_attrs which is called only when indio_dev->channels is true. Nevertheless the list is used unconditionally later in iio_device_register_eventset which results in a NULL pointer exception. To fix this unconditionally initialize the list in iio_device_register_eventset. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-05-14iio: Use dev_to_iio_dev()Lars-Peter Clausen
Replace open-coded instances of getting a iio_dev struct from a device struct with dev_to_iio_dev(). Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25IIO: Move the core files to drivers/iioJonathan Cameron
Take the core support + the kfifo buffer implentation out of staging. Whilst we are far from done in improving this subsystem it is now at a stage where the userspae interfaces (provided by the core) can be considered stable. Drivers will follow over a longer time scale. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>