From 6e6672604773b9bae44d88d38afdf0763c104b1c Mon Sep 17 00:00:00 2001
From: Prasanna Meda <mlp@google.com>
Date: Fri, 23 Jun 2006 02:05:23 -0700
Subject: [PATCH] [PATCH] dup fd error fix
Set errorp in dup_fd, it will be used in sys_unshare also.
Signed-off-by: Prasanna Meda <mlp@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
kernel/fork.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/fork.c b/kernel/fork.c
index 195958a3a4d6..49adc0e8d47c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -625,6 +625,7 @@ out:
/*
* Allocate a new files structure and copy contents from the
* passed in files structure.
+ * errorp will be valid only when the returned files_struct is NULL.
*/
static struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
{
@@ -633,6 +634,7 @@ static struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
int open_files, size, i, expand;
struct fdtable *old_fdt, *new_fdt;
+ *errorp = -ENOMEM;
newf = alloc_files();
if (!newf)
goto out;
@@ -746,7 +748,6 @@ static int copy_files(unsigned long clone_flags, struct task_struct * tsk)
* break this.
*/
tsk->files = NULL;
- error = -ENOMEM;
newf = dup_fd(oldf, &error);
if (!newf)
goto out;
--
GitLab