From: Yunfeng Ye yeyunfeng@huawei.com
[ Upstream commit aacee5446a2a1aa35d0a49dab289552578657fb4 ]
The variable inode may be NULL in reiserfs_insert_item(), but there is no check before accessing the member of inode.
Fix this by adding NULL pointer check before calling reiserfs_debug().
Link: http://lkml.kernel.org/r/79c5135d-ff25-1cc9-4e99-9f572b88cc00@huawei.com Signed-off-by: Yunfeng Ye yeyunfeng@huawei.com Cc: zhengbin zhengbin13@huawei.com Cc: Hu Shiyuan hushiyuan@huawei.com Cc: Feilong Lin linfeilong@huawei.com Cc: Jan Kara jack@suse.cz Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/reiserfs/stree.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c index 0037aea97d39a..2946713cb00d6 100644 --- a/fs/reiserfs/stree.c +++ b/fs/reiserfs/stree.c @@ -2250,7 +2250,8 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, /* also releases the path */ unfix_nodes(&s_ins_balance); #ifdef REISERQUOTA_DEBUG - reiserfs_debug(th->t_super, REISERFS_DEBUG_CODE, + if (inode) + reiserfs_debug(th->t_super, REISERFS_DEBUG_CODE, "reiserquota insert_item(): freeing %u id=%u type=%c", quota_bytes, inode->i_uid, head2type(ih)); #endif