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Re: [PATCH v2] pinctrl: madera: Fix uninitialized variable bug in madera_mux_set_mux




On Wed, Oct 10, 2018 at 05:13:13PM +0200, Gustavo A. R. Silva wrote:
> There is a potential execution path in which variable *ret* is checked
> in an IF statement, and then its value is used to report an error at
> line 659 without being properly initialized previously:
> 
> 659 if (ret)
> 660	dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
> 
> Fix this by initializing variable *ret* to 0 in order to
> avoid unpredictable or unintended results.
> 
> Addresses-Coverity-ID: 1471969 ("Uninitialized scalar variable")
> Fixes: 218d72a77b0b ("pinctrl: madera: Add driver for Cirrus Logic Madera codecs")
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> ---

Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>

Thanks,
Charles