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iio: dac: adi-axi-dac: add io_mode check

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Add safe check to the high bound of the enum values,

Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
Link: https://patch.msgid.link/20250219-wip-bl-axi-dac-add-enum-check-v1-1-8de9db0b3b1b@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Angelo Dureghello 2025-02-19 19:57:43 +01:00 committed by Jonathan Cameron
parent 583350c1d4
commit 25331775b5
1 changed files with 3 additions and 0 deletions
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3
drivers/iio/dac/adi-axi-dac.c
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@ -728,6 +728,9 @@ static int axi_dac_bus_set_io_mode(struct iio_backend *back,
struct axi_dac_state *st = iio_backend_get_priv(back);
int ival, ret;
if (mode > AD3552R_IO_MODE_QSPI)
return -EINVAL;
guard(mutex)(&st->lock);
ret = regmap_update_bits(st->regmap, AXI_DAC_CUSTOM_CTRL_REG,