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authorKim, Milo <Milo.Kim@ti.com>2012-09-17 12:44:00 +0400
committerJonathan Cameron <jic23@kernel.org>2012-09-17 22:16:42 +0400
commitb2b79ffa40d7ae40115631660ff8b6da3cf989b6 (patch)
tree89471ce2b1f1d5fb24dd55f4d91fb64058818348 /drivers/iio/dac/Kconfig
parent2cc412b513f70ce914a3554a34917f7585a16f04 (diff)
downloadlinux-b2b79ffa40d7ae40115631660ff8b6da3cf989b6.tar.xz
iio: inkern: add error case in iio_channel_get()
The datasheet name is defined in the IIO driver. On the other hand, the adc_channel_label is configured in the platform side. If the datasheet name is not matched with any adc_channel_label, the iio_channel_get() should be returned as error for preventing invalid channel data access. This can be handled either way. (a) checking null data when using it : in the xxx_read_raw() or (b) error returns when the channel is requested : this patch The IIO consumer can't use the channel with invalid channel spec. Therefore case (b) is more reasonable. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/dac/Kconfig')
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