Merge remote-tracking branches 'regulator/fix/88pm800', 'regulator/fix/max8973',...

[karo-tx-linux.git] / fs / proc / base.c

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 87782e874b6af4523adff3e7e721046d5f857ee0..aa50d1ac28fc6189a9489d1b679fcf86115e633c 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -243,6 +243,11 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf,
        len1 = arg_end - arg_start;
        len2 = env_end - env_start;
 
+       /* Empty ARGV. */
+       if (len1 == 0) {
+               rv = 0;
+               goto out_free_page;
+       }
        /*
         * Inherently racy -- command line shares address space
         * with code and data.