clk: fix incorrect usage of ENOSYS

ENOSYS is special and should only be used for incorrect syscall number.
It does not seem to be the case here.

Reported by checkpatch.pl while working on clock protection.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20171201215200.23523-2-jbrunet@baylibre.com

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 647d056df88c8dd2a7d8288e35fa2eeba9b7705b..5fe9e63b15c654e634c598e8320ab858aa4c2e1f 100644 (file)
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1888,7 +1888,7 @@ static int clk_core_set_parent(struct clk_core *core, struct clk_core *parent)
 
        /* verify ops for for multi-parent clks */
        if ((core->num_parents > 1) && (!core->ops->set_parent)) {
-               ret = -ENOSYS;
+               ret = -EPERM;
                goto out;
        }