From: Michael Buesch <mb@bu3sch.de>

The geode hwrng leaks an iomapped resource, if hwrng_register() fails.
This fixes it.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/char/hw_random/geode-rng.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff -puN drivers/char/hw_random/geode-rng.c~hwrng-fix-geode-probe-error-unwind drivers/char/hw_random/geode-rng.c
--- a/drivers/char/hw_random/geode-rng.c~hwrng-fix-geode-probe-error-unwind
+++ a/drivers/char/hw_random/geode-rng.c
@@ -107,10 +107,14 @@ found:
 	if (err) {
 		printk(KERN_ERR PFX "RNG registering failed (%d)\n",
 		       err);
-		goto out;
+		goto err_unmap;
 	}
 out:
 	return err;
+
+err_unmap:
+	iounmap(mem);
+	goto out;
 }
 
 static void __exit mod_exit(void)
_