iio: adc: ad_sigma_delta: Fix use of uninitialized status_pos

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Fix Smatch-detected issue:
drivers/iio/adc/ad_sigma_delta.c:604 ad_sd_trigger_handler() error:
uninitialized symbol 'status_pos'.

The variable `status_pos` was only initialized in specific switch cases
(1, 2, 3, 4), which could leave it uninitialized if `reg_size` had an
unexpected value.

Fix by adding a default case to the switch block to catch unexpected
values of `reg_size`. Use `dev_err_ratelimited()` for error logging and
`goto irq_handled` instead of returning early.

Signed-off-by: Purva Yeshi <purvayeshi550@gmail.com>
Link: https://patch.msgid.link/20250410170408.8585-1-purvayeshi550@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Purva Yeshi 2025-04-10 22:34:08 +05:30 • committed by Jonathan Cameron

parent b1c5d68ea6

commit e5cdb098a3

1 changed files with 4 additions and 0 deletions

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drivers/iio/adc/ad_sigma_delta.c

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