[PATCH] mtd: maps: add missing iounmap() in error path

[Luis Henriques]

This patch was triggered by the following Coccinelle error:

./drivers/mtd/maps/sc520cdp.c:246:3-9: \
        ERROR: missing iounmap; ioremap on line 242 \
        and execution via conditional on line 244

Signed-off-by: Luis Henriques <hen...@camandro.org>
---
 drivers/mtd/maps/sc520cdp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c
index 093edd51bdc7..7a27ed345d0d 100644
--- a/drivers/mtd/maps/sc520cdp.c
+++ b/drivers/mtd/maps/sc520cdp.c
@@ -243,6 +243,10 @@ static int __init init_sc520cdp(void)
 
                if (!sc520cdp_map[i].virt) {
                        printk("Failed to ioremap_nocache\n");
+                       if (i) {
+                               while (--i)
+                                       iounmap(sc520cdp_map[i].virt);
+                       }
                        return -EIO;
                }