Revert "MALI: midgard: RK: not to power off all the pm cores"

[firefly-linux-kernel-4.4.55.git] / security / min_addr.c

diff --git a/security/min_addr.c b/security/min_addr.c
index c844eed7915d0d270c058c16d6b3db40ffa576d0..f728728f193bdc0b1a3d578c0f1fa69b016dfabb 100644 (file)
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -33,6 +33,9 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
 {
        int ret;
 
+       if (write && !capable(CAP_SYS_RAWIO))
+               return -EPERM;
+
        ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 
        update_mmap_min_addr();
@@ -40,7 +43,7 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
        return ret;
 }
 
-int __init init_mmap_min_addr(void)
+static int __init init_mmap_min_addr(void)
 {
        update_mmap_min_addr();