create_pipe_files(): use fput() if allocation of the second file fails

... just use put_pipe_info() to get the pipe->files down to 1 and let
fput()-called pipe_release() do freeing.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index bb0840e234f3..9405e455f5b1 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -771,8 +771,9 @@ int create_pipe_files(struct file **res, int flags)
 
         res[0] = alloc_file(&path, FMODE_READ, &pipefifo_fops);
         if (IS_ERR(res[0])) {
-                err = PTR_ERR(res[0]);
-                goto err_file;
+                put_pipe_info(inode, inode->i_pipe);
+                fput(f);
+                return PTR_ERR(res[0]);
         }
 
         path_get(&path);
@@ -781,8 +782,6 @@ int create_pipe_files(struct file **res, int flags)
         res[1] = f;
         return 0;
 
-err_file:
-        put_filp(f);
 err_dentry:
         free_pipe_info(inode->i_pipe);
         path_put(&path);