i2c: rcar: fix clk_get() error handling

When clk_get() fails, it returns an error code, not a NULL. This patch
fixes such an error handling bug.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 1f285a3be5c5..98276eb5f6e7 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -234,9 +234,9 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
         u32 cdf_width;
         unsigned long rate;
 
-        if (!clkp) {
-                dev_err(dev, "there is no peripheral_clk\n");
-                return -EIO;
+        if (IS_ERR(clkp)) {
+                dev_err(dev, "couldn't get clock\n");
+                return PTR_ERR(clkp);
         }
 
         switch (priv->devtype) {