From: Gavin Lambert <gavinl@compacsort.com>
Date: Sun, 1 Oct 2006 06:27:01 +0000 (-0700)
Subject: [PATCH] NOMMU: don't try and give NULL to fput()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3fcd03e07008ec0f667dfb7626171165699ea5c2;p=linux-beck.git

[PATCH] NOMMU: don't try and give NULL to fput()

Don't try and give NULL to fput() in the error handling in do_mmap_pgoff()
as it'll cause an oops.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/mm/nommu.c b/mm/nommu.c
index 564540662192..365019599df8 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -948,7 +948,8 @@ unsigned long do_mmap_pgoff(struct file *file,
 	up_write(&nommu_vma_sem);
 	kfree(vml);
 	if (vma) {
-		fput(vma->vm_file);
+		if (vma->vm_file)
+			fput(vma->vm_file);
 		kfree(vma);
 	}
 	return ret;