From c04466c17142d5eb566984372b9a5003d1900fe3 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Wed, 17 Apr 2019 14:44:27 -0700 Subject: scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd() The test "if (!cmd)" is not useful because it is guaranteed that cmd != NULL. Instead of testing the cmd pointer, rely on the tag to decide whether or not command allocation failed. Cc: Himanshu Madhani Cc: Giridhar Malavali Fixes: 33e799775593 ("qla2xxx: Add support for QFull throttling and Term Exchange retry") # v3.18. Signed-off-by: Bart Van Assche Acked-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 08f22ed0c719..e17ae3b7f0f6 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -5481,11 +5481,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, se_sess = sess->se_sess; tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu); - if (tag < 0) - return; - - cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; - if (!cmd) { + if (tag < 0) { ql_dbg(ql_dbg_io, vha, 0x3009, "qla_target(%d): %s: Allocation of cmd failed\n", vha->vp_idx, __func__); @@ -5500,6 +5496,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, return; } + cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; memset(cmd, 0, sizeof(struct qla_tgt_cmd)); qlt_incr_num_pend_cmds(vha); -- cgit v1.2.3