Re: [PATCH v8 09/22] counter: Return error code on invalid modes

From: David Lechner
Date: Sat Feb 20 2021 - 11:49:52 EST


On 2/12/21 6:13 AM, William Breathitt Gray wrote:
Only a select set of modes (function, action, etc.) are valid for a
given device configuration. This patch ensures that invalid modes result
in a return -EINVAL. Such a situation should never occur in reality, but
it's good to define a default switch cases for the sake of making the
intent of the code clear.

Cc: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Cc: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
Cc: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
Cc: Alexandre Torgue <alexandre.torgue@xxxxxx>
Cc: David Lechner <david@xxxxxxxxxxxxxx>
Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
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Reviewed-by: David Lechner <david@xxxxxxxxxxxxxx>

(In response to Jonathan's comment, I think this is fine rather than
adding more churn to change all of the breaks to returns - but will
keep that in mind for future changes.)