rtc: mxc: fix memory leak

Free pdata before exit.  Found by cppcheck.

[yuasa@linux-mips.org: add missing iounmap()]
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc Yoichi Yuasa <yuasa@linux-mips.org>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 6bd5072d4eb7..8710f9415d98 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -396,8 +396,11 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
         pdata->ioaddr = ioremap(res->start, resource_size(res));
 
         clk = clk_get(&pdev->dev, "ckil");
-        if (IS_ERR(clk))
-                return PTR_ERR(clk);
+        if (IS_ERR(clk)) {
+                iounmap(pdata->ioaddr);
+                ret = PTR_ERR(clk);
+                goto exit_free_pdata;
+        }
 
         rate = clk_get_rate(clk);
         clk_put(clk);