proc: fix make cmdline writable for amlogic-4.9

diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
index 24cb197..1e8f919 100644 (file)
--- a/fs/proc/cmdline.c
+++ b/fs/proc/cmdline.c
@@ -19,7 +19,7 @@ static int cmdline_proc_open(struct inode *inode, struct file *file)
        return single_open(file, cmdline_proc_show, NULL);
 }
 
-static int cmdline_proc_write(struct file *file, const char __user *buf,
+static ssize_t cmdline_proc_write(struct file *file, const char __user *buf,
                                size_t len, loff_t *ppos)
 {
        char str[COMMAND_LINE_SIZE];
@@ -28,7 +28,7 @@ static int cmdline_proc_write(struct file *file, const char __user *buf,
           return -EFAULT;
        }
        str[len] = '\0';
-       strlcpy(proc_cmdline, str, min((int)len, COMMAND_LINE_SIZE));
+       strlcpy(proc_cmdline, str, min(len, COMMAND_LINE_SIZE));
 
        return len;
 }