[PATCH 4.6 064/121] clk: at91: fix check of clk_register() returned value

[Greg Kroah-Hartman]

4.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vladimir Zapolskiy <v...@mleia.com>

commit cb0ceaf77d93964a0d00477c79f4499123f6159c upstream.

The clk_register() function returns a valid pointer to struct clk or
ERR_PTR() error code, this makes a check for returned NULL value
useless and may lead to oops on error path.

Signed-off-by: Vladimir Zapolskiy <v...@mleia.com>
Acked-by: Alexandre Belloni <alexandre.bell...@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezil...@free-electrons.com>
Fixes: bcc5fd49a0fd ("clk: at91: add a driver for the h32mx clock")
Signed-off-by: Stephen Boyd <sb...@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/clk/at91/clk-h32mx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -114,7 +114,7 @@ static void __init of_sama5d4_clk_h32mx_
        h32mxclk->regmap = regmap;
 
        clk = clk_register(NULL, &h32mxclk->hw);
-       if (!clk) {
+       if (IS_ERR(clk)) {
                kfree(h32mxclk);
                return;
        }