Messages in this thread | | | From | Mike Turquette <> | Subject | Re: [PATCH] clk: mux: Return a sane value on error | Date | Wed, 30 Oct 2013 12:47:22 -0700 |
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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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