From c3be4f67ef14993adea1bf0623f04ca8383721cf Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Tue, 27 Oct 2015 21:17:41 +0800 Subject: [PATCH] LU-8682 llite: protect from accessing NULL lli_clob Need to check file's lli_clob object before calling lov_read_and_clear_async_rc(). lustre-change: http://review.whamcloud.com/16954 lustre-commit: 4e416d205b0d04e291e0f279741af85fa73845d2 Signed-off-by: Bobi Jam Intel-bug-id: LDEV-231 Change-Id: I210b22d4e17dd4a407378aa987434d1940799f1f Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Reviewed-on: http://review.whamcloud.com/23031 Tested-by: Jenkins Tested-by: Maloo --- lustre/llite/file.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/lustre/llite/file.c b/lustre/llite/file.c index 740e199..20c8a24 100644 --- a/lustre/llite/file.c +++ b/lustre/llite/file.c @@ -2955,9 +2955,11 @@ int ll_fsync(struct file *file, struct dentry *dentry, int datasync) lli->lli_async_rc = 0; if (rc == 0) rc = err; - err = lov_read_and_clear_async_rc(lli->lli_clob); - if (rc == 0) - rc = err; + if (lli->lli_clob != NULL) { + err = lov_read_and_clear_async_rc(lli->lli_clob); + if (rc == 0) + rc = err; + } } err = md_fsync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), &req); -- 1.8.3.1