hwmon: (ads7871) Fix incorrect error code in voltage_show

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The voltage_show() function returns -1 when the A/D conversion
fails to complete within the polling loop. -1 maps to -EPERM
(operation not permitted), which does not describe the actual
failure.

Replace this -1 error code with -ETIMEDOUT to better indicate
the timeout condition to userspace.

Drop the else block after return.

Note: not runtime tested due to lack of hardware.

Signed-off-by: Tabrez Ahmed <tabreztalks@gmail.com>
Link: https://lore.kernel.org/r/20260307115226.25757-1-tabreztalks@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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Tabrez Ahmed 2026-03-07 17:22:26 +05:30 • committed by Guenter Roeck

parent 4cd4489493

commit 69694e9622

1 changed files with 2 additions and 2 deletions

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drivers/hwmon/ads7871.c

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