diff options
| author |  wang di <di.wang@intel.com>
| 2017-02-11 12:12:37 -0500 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2017-02-12 13:13:06 +0100 |
| commit | 7b0a17f5f68a22b960a335dbfe7c1fd93a57506f (patch) | |
| tree | f15ef7ecac39900ad0d427307402b7d20db892d5 /drivers/staging/lustre | |
| parent | Merge tag 'iio-fixes-for-4.11a' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | linux-7b0a17f5f68a22b960a335dbfe7c1fd93a57506f.tar.gz linux-7b0a17f5f68a22b960a335dbfe7c1fd93a57506f.tar.bz2 linux-7b0a17f5f68a22b960a335dbfe7c1fd93a57506f.zip | |
staging: lustre: llite: check request != NULL in ll_migrate
Check if the request is NULL, before retrieve reply body
from the request.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7396
Reviewed-on: http://review.whamcloud.com/17079
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/file.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 987090119559..0c83bd76c3d0 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2667,28 +2667,33 @@ again: if (!rc) ll_update_times(request, parent); - body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); - if (!body) { - rc = -EPROTO; - goto out_free; - } + if (request) { + body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); + if (!body) { + rc = -EPROTO; + goto out_free; + } - /* - * If the server does release layout lock, then we cleanup - * the client och here, otherwise release it in out_free: - */ - if (och && body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) { - obd_mod_put(och->och_mod); - md_clear_open_replay_data(ll_i2sbi(parent)->ll_md_exp, och); - och->och_fh.cookie = DEAD_HANDLE_MAGIC; - kfree(och); - och = NULL; - } + /* + * If the server does release layout lock, then we cleanup + * the client och here, otherwise release it in out_free: + */ + if (och && body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) { + obd_mod_put(och->och_mod); + md_clear_open_replay_data(ll_i2sbi(parent)->ll_md_exp, + och); + och->och_fh.cookie = DEAD_HANDLE_MAGIC; + kfree(och); + och = NULL; + } - ptlrpc_req_finished(request); + ptlrpc_req_finished(request); + } /* Try again if the file layout has changed. */ - if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) + if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) { + request = NULL; goto again; + } out_free: if (child_inode) { if (och) /* close the file */ |