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| author | Bart Van Assche <bvanassche@acm.org> | 2019-08-08 20:01:48 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-08-12 21:34:06 -0400 |
| commit | c29282c65d1cf54daeea63be46243d7f69d72f4d (patch) | |
| tree | b61f4e1808a5cc85b6c1b0cd3dc307815a96e803 /drivers/scsi | |
| parent | 282d10565ee9b574c40b1233a7a666034e76aa4c (diff) | |
| download | linux-c29282c65d1cf54daeea63be46243d7f69d72f4d.tar.bz2 | |
scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
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>
Diffstat (limited to 'drivers/scsi')
| -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 11e420f8c493..240b07b0098a 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -1782,8 +1782,8 @@ 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)) { @@ -1888,6 +1888,9 @@ 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, @@ -1895,10 +1898,6 @@ 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) { |