clk: versatile: off by one in clk_sp810_timerclken_of_get()

commit 3294bee87091be5f179474f6c39d1d87769635e2 upstream.

The ">" should be ">=" or we end up reading beyond the end of the array.

Fixes: 6e973d2c4385 ('clk: vexpress: Add separate SP810 driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c
index bf9b15a585e188656a38ebeec0d187ff3d56937e..b9e05bde0c0616e8a46a4fc7b9b4065557a13035 100644 (file)
--- a/drivers/clk/versatile/clk-sp810.c
+++ b/drivers/clk/versatile/clk-sp810.c
@@ -128,8 +128,8 @@ struct clk *clk_sp810_timerclken_of_get(struct of_phandle_args *clkspec,
 {
        struct clk_sp810 *sp810 = data;
 
-       if (WARN_ON(clkspec->args_count != 1 || clkspec->args[0] >
-                       ARRAY_SIZE(sp810->timerclken)))
+       if (WARN_ON(clkspec->args_count != 1 ||
+                   clkspec->args[0] >= ARRAY_SIZE(sp810->timerclken)))
                return NULL;
 
        return sp810->timerclken[clkspec->args[0]].clk;