thermal: rockchip: add rk3328 support

[firefly-linux-kernel-4.4.55.git] / drivers / oprofile / oprofile_files.c

diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index 89f63456646fa4c67b6ee74f7c657917be05a425..ee2cfce358b9810b5d1f06e28d18e86e1dec0a98 100644 (file)
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -45,7 +45,7 @@ static ssize_t timeout_write(struct file *file, char const __user *buf,
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
        retval = oprofile_set_timeout(val);
@@ -84,7 +84,7 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
        retval = oprofile_set_ulong(&oprofile_backtrace_depth, val);
@@ -141,9 +141,10 @@ static ssize_t enable_write(struct file *file, char const __user *buf, size_t co
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
+       retval = 0;
        if (val)
                retval = oprofile_start();
        else
@@ -174,7 +175,7 @@ static const struct file_operations dump_fops = {
        .llseek         = noop_llseek,
 };
 
-void oprofile_create_files(struct super_block *sb, struct dentry *root)
+void oprofile_create_files(struct dentry *root)
 {
        /* reinitialize default values */
        oprofile_buffer_size =          BUFFER_SIZE_DEFAULT;
@@ -182,19 +183,19 @@ void oprofile_create_files(struct super_block *sb, struct dentry *root)
        oprofile_buffer_watershed =     BUFFER_WATERSHED_DEFAULT;
        oprofile_time_slice =           msecs_to_jiffies(TIME_SLICE_DEFAULT);
 
-       oprofilefs_create_file(sb, root, "enable", &enable_fops);
-       oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
-       oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
-       oprofilefs_create_ulong(sb, root, "buffer_size", &oprofile_buffer_size);
-       oprofilefs_create_ulong(sb, root, "buffer_watershed", &oprofile_buffer_watershed);
-       oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
-       oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
-       oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
-       oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
+       oprofilefs_create_file(root, "enable", &enable_fops);
+       oprofilefs_create_file_perm(root, "dump", &dump_fops, 0666);
+       oprofilefs_create_file(root, "buffer", &event_buffer_fops);
+       oprofilefs_create_ulong(root, "buffer_size", &oprofile_buffer_size);
+       oprofilefs_create_ulong(root, "buffer_watershed", &oprofile_buffer_watershed);
+       oprofilefs_create_ulong(root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
+       oprofilefs_create_file(root, "cpu_type", &cpu_type_fops);
+       oprofilefs_create_file(root, "backtrace_depth", &depth_fops);
+       oprofilefs_create_file(root, "pointer_size", &pointer_size_fops);
 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-       oprofilefs_create_file(sb, root, "time_slice", &timeout_fops);
+       oprofilefs_create_file(root, "time_slice", &timeout_fops);
 #endif
-       oprofile_create_stats_files(sb, root);
+       oprofile_create_stats_files(root);
        if (oprofile_ops.create_files)
-               oprofile_ops.create_files(sb, root);
+               oprofile_ops.create_files(root);
 }