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| author | Varun Prakash <varun@chelsio.com> | 2017-07-23 20:01:32 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-07-24 22:16:16 -0400 |
| commit | 5029271072bf55afa6d836180ee93af09b26ab8b (patch) | |
| tree | 8595fad2ebf5281937802d19d4ae5fefa8f259b3 /drivers/scsi/cxgbi/libcxgbi.c | |
| parent | 516b7db593f3a541e2e98867575c3c697f41a247 (diff) | |
| download | linux-5029271072bf55afa6d836180ee93af09b26ab8b.tar.bz2 | |
scsi: libcxgbi: add check for valid cxgbi_task_data
In error case it is possible that ->cleanup_task() gets called without
calling ->alloc_pdu() in this case cxgbi_task_data is not valid, so add
a check for for valid cxgbi_task_data in cxgbi_cleanup_task().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxgbi/libcxgbi.c')
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index e4c83b7c96a8..1a4cfa562a60 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -2128,6 +2128,13 @@ void cxgbi_cleanup_task(struct iscsi_task *task) struct iscsi_tcp_task *tcp_task = task->dd_data; struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task); + if (!tcp_task || !tdata || (tcp_task->dd_data != tdata)) { + pr_info("task 0x%p,0x%p, tcp_task 0x%p, tdata 0x%p/0x%p.\n", + task, task->sc, tcp_task, + tcp_task ? tcp_task->dd_data : NULL, tdata); + return; + } + log_debug(1 << CXGBI_DBG_ISCSI, "task 0x%p, skb 0x%p, itt 0x%x.\n", task, tdata->skb, task->hdr_itt); |