Messages in this thread Patch in this message | | | From | Russ Dill <> | Subject | [PATCH] clk: mux: Return a sane value on error | Date | Mon, 21 Oct 2013 09:59:50 +0100 |
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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> --- 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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