clk: st: clk-flexgen: Unmap region obtained by of_iomap

Free memory mapping, if probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index a485f3b284b9..918ba3164da9 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -329,8 +329,10 @@ static void __init st_of_flexgen_setup(struct device_node *np)
                 return;
 
         parents = flexgen_get_parents(np, &num_parents);
-        if (!parents)
+        if (!parents) {
+                iounmap(reg);
                 return;
+        }
 
         match = of_match_node(flexgen_of_match, np);
         if (match) {
@@ -394,6 +396,7 @@ static void __init st_of_flexgen_setup(struct device_node *np)
         return;
 
 err:
+        iounmap(reg);
         if (clk_data)
                 kfree(clk_data->clks);
         kfree(clk_data);