rk: earlysuspend: only works on system is running

[firefly-linux-kernel-4.4.55.git] / kernel / sysctl_binary.c

diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 1357c5786064e6c8f030defbbb7f76f690dc3c15..3b8e028b96014a088b6227859b9163e8bceddb5a 100644 (file)
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -136,7 +136,6 @@ static const struct bin_table bin_kern_table[] = {
        { CTL_INT,      KERN_IA64_UNALIGNED,            "ignore-unaligned-usertrap" },
        { CTL_INT,      KERN_COMPAT_LOG,                "compat-log" },
        { CTL_INT,      KERN_MAX_LOCK_DEPTH,            "max_lock_depth" },
-       { CTL_INT,      KERN_NMI_WATCHDOG,              "nmi_watchdog" },
        { CTL_INT,      KERN_PANIC_ON_NMI,              "panic_on_unrecovered_nmi" },
        {}
 };
@@ -1193,7 +1192,7 @@ static ssize_t bin_dn_node_address(struct file *file,
 
                buf[result] = '\0';
 
-               /* Convert the decnet addresss to binary */
+               /* Convert the decnet address to binary */
                result = -EIO;
                nodep = strchr(buf, '.') + 1;
                if (!nodep)
@@ -1322,13 +1321,11 @@ static ssize_t binary_sysctl(const int *name, int nlen,
        void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
 {
        const struct bin_table *table = NULL;
-       struct nameidata nd;
        struct vfsmount *mnt;
        struct file *file;
        ssize_t result;
        char *pathname;
        int flags;
-       int acc_mode;
 
        pathname = sysctl_getname(name, nlen, &table);
        result = PTR_ERR(pathname);
@@ -1338,28 +1335,17 @@ static ssize_t binary_sysctl(const int *name, int nlen,
        /* How should the sysctl be accessed? */
        if (oldval && oldlen && newval && newlen) {
                flags = O_RDWR;
-               acc_mode = MAY_READ | MAY_WRITE;
        } else if (newval && newlen) {
                flags = O_WRONLY;
-               acc_mode = MAY_WRITE;
        } else if (oldval && oldlen) {
                flags = O_RDONLY;
-               acc_mode = MAY_READ;
        } else {
                result = 0;
                goto out_putname;
        }
 
        mnt = current->nsproxy->pid_ns->proc_mnt;
-       result = vfs_path_lookup(mnt->mnt_root, mnt, pathname, 0, &nd);
-       if (result)
-               goto out_putname;
-
-       result = may_open(&nd.path, acc_mode, flags);
-       if (result)
-               goto out_putpath;
-
-       file = dentry_open(nd.path.dentry, nd.path.mnt, flags, current_cred());
+       file = file_open_root(mnt->mnt_root, mnt, pathname, flags);
        result = PTR_ERR(file);
        if (IS_ERR(file))
                goto out_putname;
@@ -1371,10 +1357,6 @@ out_putname:
        putname(pathname);
 out:
        return result;
-
-out_putpath:
-       path_put(&nd.path);
-       goto out_putname;
 }