In gfs2_trans_begin, avoid crashing when current->journal_info is not empty. The patch fixes the error by returning -EINVAL instead of crashing.
Signed-off-by: Aditya Pakki <[email protected]> --- fs/gfs2/trans.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c index 9d4227330de4..cef8816ae0b4 100644 --- a/fs/gfs2/trans.c +++ b/fs/gfs2/trans.c @@ -31,7 +31,9 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks, struct gfs2_trans *tr; int error; - BUG_ON(current->journal_info); + if (current->journal_info) + return -EINVAL; + BUG_ON(blocks == 0 && revokes == 0); if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) -- 2.20.1
