From: yan <clouds.yan@gmail.com>
Date: Fri, 5 Oct 2012 00:15:38 +0000 (-0700)
Subject: proc: return -ENOMEM when inode allocation failed
X-Git-Tag: v4.14-rc1~11146^2~44
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=620727506dc6da0562fa4f6950dedb8a51bd8237;p=platform%2Fkernel%2Flinux-rpi.git

proc: return -ENOMEM when inode allocation failed

If proc_get_inode() returns NULL then presumably it encountered memory
exhaustion.  proc_lookup_de() should return -ENOMEM in this case, not
-EINVAL.

Signed-off-by: yan <clouds.yan@gmail.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index b3647fe6a608..9e8f63164309 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -427,7 +427,7 @@ struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir,
 		if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
 			pde_get(de);
 			spin_unlock(&proc_subdir_lock);
-			error = -EINVAL;
+			error = -ENOMEM;
 			inode = proc_get_inode(dir->i_sb, de);
 			goto out_unlock;
 		}