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SubjectRe: [PATCH] clk: mux: Return a sane value on error
Date
Quoting Russ Dill (2013-10-21 01:59:50)
> The get_parent op is defined as returning u8, but clk-mux is
> returning negative values on error. Code within drivers/clk/clk.c
> uses this return value as an index into an array which could
> cause an oops.
>
> Signed-off-by: Russ Dill <Russ.Dill@ti.com>

Hi Russ,

Thanks for the fix. Haojian Zhuang sent an identical fix the day before
you so I took his in ;-)

Regards,
Mike

> ---
> drivers/clk/clk-mux.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c
> index 4f96ff3..cc06015 100644
> --- a/drivers/clk/clk-mux.c
> +++ b/drivers/clk/clk-mux.c
> @@ -51,7 +51,7 @@ static u8 clk_mux_get_parent(struct clk_hw *hw)
> for (i = 0; i < num_parents; i++)
> if (mux->table[i] == val)
> return i;
> - return -EINVAL;
> + return 0;
> }
>
> if (val && (mux->flags & CLK_MUX_INDEX_BIT))
> @@ -61,7 +61,7 @@ static u8 clk_mux_get_parent(struct clk_hw *hw)
> val--;
>
> if (val >= num_parents)
> - return -EINVAL;
> + return 0;
>
> return val;
> }
> --
> 1.8.3.2


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