mips: cm: add missing iounmap() on error in mips_cm_probe()

Add the missing iounmap() of iounmap(mips_gcr_base) before
return from mips_cm_probe() in the error handling case.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index f60af512c8773929e2ec55f07bb6c60d88ec6bf8..90f1c3df1f0e495ed0d0496455ab23b9747f78de 100644 (file)
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -266,6 +266,7 @@ int mips_cm_probe(void)
        if ((base_reg & CM_GCR_BASE_GCRBASE) != addr) {
                pr_err("GCRs appear to have been moved (expected them at 0x%08lx)!\n",
                       (unsigned long)addr);
+               iounmap(mips_gcr_base);
                mips_gcr_base = NULL;
                return -ENODEV;
        }