iio: adc: stmpe-adc: Fix wait_for_completion_timeout return value check

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wait_for_completion_timeout() returns unsigned long not long.
it returns 0 if timed out, and positive if completed.
The check for <= 0 is ambiguous and should be == 0 here
indicating timeout which is the only error case

Fixes: e813dde6f8 ("iio: stmpe-adc: Use wait_for_completion_timeout")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
Link: https://lore.kernel.org/r/20220412065150.14486-1-linmq006@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Miaoqian Lin 2022-04-12 06:51:45 +00:00 • committed by Jonathan Cameron

parent a503bc0a58

commit d345b23200

1 changed files with 4 additions and 4 deletions

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drivers/iio/adc/stmpe-adc.c

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