diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2019-08-09 06:01:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 22:35:24 +0300 |
| commit | f7ba4776c74affa8a853e0090b7adb498354eec7 (patch) | |
| tree | 449d3ff9dade57be390ebb204e84af8f3a033dab /drivers | |
| parent | 3245c2061013d09a17367e11c5645d578d2b4129 (diff) | |
| download | linux-f7ba4776c74affa8a853e0090b7adb498354eec7.tar.xz | |
scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
[ Upstream commit c29282c65d1cf54daeea63be46243d7f69d72f4d ]
Set the r??_data_len variables before using these instead of after.
This patch fixes the following Coverity complaint:
const: At condition req_data_len != rsp_data_len, the value of req_data_len
must be equal to 0.
const: At condition req_data_len != rsp_data_len, the value of rsp_data_len
must be equal to 0.
dead_error_condition: The condition req_data_len != rsp_data_len cannot be
true.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Fixes: a9b6f722f62d ("[SCSI] qla2xxx: Implementation of bidirectional.") # v3.7.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_bsg.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index b68a708c6725..47f062e96e62 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -1779,8 +1779,8 @@ qla24xx_process_bidir_cmd(struct bsg_job *bsg_job) uint16_t nextlid = 0; uint32_t tot_dsds; srb_t *sp = NULL; - uint32_t req_data_len = 0; - uint32_t rsp_data_len = 0; + uint32_t req_data_len; + uint32_t rsp_data_len; /* Check the type of the adapter */ if (!IS_BIDI_CAPABLE(ha)) { @@ -1885,6 +1885,9 @@ qla24xx_process_bidir_cmd(struct bsg_job *bsg_job) goto done_unmap_sg; } + req_data_len = bsg_job->request_payload.payload_len; + rsp_data_len = bsg_job->reply_payload.payload_len; + if (req_data_len != rsp_data_len) { rval = EXT_STATUS_BUSY; ql_log(ql_log_warn, vha, 0x70aa, @@ -1892,10 +1895,6 @@ qla24xx_process_bidir_cmd(struct bsg_job *bsg_job) goto done_unmap_sg; } - req_data_len = bsg_job->request_payload.payload_len; - rsp_data_len = bsg_job->reply_payload.payload_len; - - /* Alloc SRB structure */ sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL); if (!sp) { |