From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH 17/18] f2fs crypto: fix missing key when reading a page Date: Fri, 8 May 2015 21:20:52 -0700 Message-ID: <1431145253-2019-17-git-send-email-jaegeuk@kernel.org> References: <1431145253-2019-1-git-send-email-jaegeuk@kernel.org> Cc: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Return-path: In-Reply-To: <1431145253-2019-1-git-send-email-jaegeuk@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org 1. mount $mnt 2. cp data $mnt/ 3. umount $mnt 4. log out 5. log in 6. cat $mnt/data -> panic, due to no i_crypt_info. Signed-off-by: Jaegeuk Kim --- fs/f2fs/crypto.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/crypto.c b/fs/f2fs/crypto.c index 38c005c..509d19a 100644 --- a/fs/f2fs/crypto.c +++ b/fs/f2fs/crypto.c @@ -131,7 +131,9 @@ struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *inode) unsigned long flags; struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info; - BUG_ON(ci == NULL); + if (ci == NULL) + return ERR_PTR(-EACCES); + /* * We first try getting the ctx from a free list because in * the common case the ctx will have an allocated and -- 2.1.1