These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / pipe.c

diff --git a/kernel/fs/pipe.c b/kernel/fs/pipe.c
index 8865f79..42cf8dd 100644 (file)
--- a/kernel/fs/pipe.c
+++ b/kernel/fs/pipe.c
@@ -366,18 +366,17 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
                int offset = buf->offset + buf->len;
 
                if (ops->can_merge && offset + chars <= PAGE_SIZE) {
-                       int error = ops->confirm(pipe, buf);
-                       if (error)
+                       ret = ops->confirm(pipe, buf);
+                       if (ret)
                                goto out;
 
                        ret = copy_page_from_iter(buf->page, offset, chars, from);
                        if (unlikely(ret < chars)) {
-                               error = -EFAULT;
+                               ret = -EFAULT;
                                goto out;
                        }
                        do_wakeup = 1;
-                       buf->len += chars;
-                       ret = chars;
+                       buf->len += ret;
                        if (!iov_iter_count(from))
                                goto out;
                }
@@ -693,17 +692,20 @@ int create_pipe_files(struct file **res, int flags)
 
        d_instantiate(path.dentry, inode);
 
-       err = -ENFILE;
        f = alloc_file(&path, FMODE_WRITE, &pipefifo_fops);
-       if (IS_ERR(f))
+       if (IS_ERR(f)) {
+               err = PTR_ERR(f);
                goto err_dentry;
+       }
 
        f->f_flags = O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT));
        f->private_data = inode->i_pipe;
 
        res[0] = alloc_file(&path, FMODE_READ, &pipefifo_fops);
-       if (IS_ERR(res[0]))
+       if (IS_ERR(res[0])) {
+               err = PTR_ERR(res[0]);
                goto err_file;
+       }
 
        path_get(&path);
        res[0]->private_data = inode->i_pipe;