Dai Ngo a0df1c3326 NFSD: fix problems with cleanup on errors in nfsd4_copy
[ Upstream commit 81e722978ad21072470b73d8f6a50ad62c7d5b7d ]

When nfsd4_copy fails to allocate memory for async_copy->cp_src, or
nfs4_init_copy_state fails, it calls cleanup_async_copy to do the
cleanup for the async_copy which causes page fault since async_copy
is not yet initialized.

This patche rearranges the order of initializing the fields in
async_copy and adds checks in cleanup_async_copy to skip un-initialized
fields.

Fixes: ce0887ac96d3 ("NFSD add nfs4 inter ssc to nfsd4_copy")
Fixes: 87689df69491 ("NFSD: Shrink size of struct nfsd4_copy")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-04-10 16:19:26 +02:00
..
2024-04-10 16:18:38 +02:00
2024-02-23 08:54:51 +01:00
2021-12-29 12:28:59 +01:00
2024-04-10 16:19:24 +02:00
2024-03-01 13:21:47 +01:00
2023-09-19 12:22:53 +02:00
2024-03-01 13:21:43 +01:00
2023-09-23 11:10:01 +02:00
2023-12-08 08:48:04 +01:00
2023-08-30 16:18:19 +02:00
2024-04-10 16:19:01 +02:00
2022-12-14 11:37:31 +01:00
2023-01-12 11:58:47 +01:00
2022-07-02 16:41:17 +02:00
2022-07-12 16:35:08 +02:00
2021-12-14 10:57:15 +01:00