i2c: mv64xxx: Remove useless test before clk_disable_unprepare

clk_disable_unprepare() already checks that the clock pointer is valid.
No need to test it before calling it.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-mv64xxx.c

@@ -950,9 +950,7 @@ exit_free_irq:
 exit_reset:
 	reset_control_assert(drv_data->rstc);
 exit_clk:
-	/* Not all platforms have a clk */
-	if (!IS_ERR(drv_data->clk))
-		clk_disable_unprepare(drv_data->clk);
+	clk_disable_unprepare(drv_data->clk);
 
 	return rc;
 }
@@ -965,9 +963,7 @@ mv64xxx_i2c_remove(struct platform_device *dev)
 	i2c_del_adapter(&drv_data->adapter);
 	free_irq(drv_data->irq, drv_data);
 	reset_control_assert(drv_data->rstc);
-	/* Not all platforms have a clk */
-	if (!IS_ERR(drv_data->clk))
-		clk_disable_unprepare(drv_data->clk);
+	clk_disable_unprepare(drv_data->clk);
 
 	return 0;
 }