iio: dac: mcp4725: Fix i2c_master_send() return value handling
commit 09d3bec7 upstream. The i2c_master_send() returns number of sent bytes on success, or negative on error. The suspend/resume callbacks expect zero on success and non-zero on error. Adapt the return value of the i2c_master_send() to the expectation of the suspend and resume callbacks, including proper validation of the return value. Fixes: cf35ad61 ("iio: add mcp4725 I2C DAC driver") Signed-off-by:Marek Vasut <marex@denx.de> Reviewed-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230511004330.206942-1-marex@denx.de Cc: <Stable@vger.kernel.org> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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89f92d43
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