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| author | Mike Christie <michael.christie@oracle.com> | 2023-10-04 16:00:07 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-10-13 16:36:20 -0400 |
| commit | 0b149cee836aa53989ea089af1cb9d90d7c6ac9e (patch) | |
| tree | d2a67a7c873e9f142d4224c39f84a201f52ec347 /drivers/scsi | |
| parent | 87e145a29363700a3007fb3ae20edd951ad14693 (diff) | |
| download | lwn-0b149cee836aa53989ea089af1cb9d90d7c6ac9e.tar.gz lwn-0b149cee836aa53989ea089af1cb9d90d7c6ac9e.zip | |
scsi: spi: Fix sshdr use
If scsi_execute_cmd returns < 0, it doesn't initialize the sshdr, so we
shouldn't access the sshdr. If it returns 0, then the cmd executed
successfully, so there is no need to check the sshdr. This has us access
the sshdr when we get a return value > 0.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20231004210013.5601-7-michael.christie@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/scsi_transport_spi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index 2442d4d2e3f3..f668c1c0a98f 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -676,10 +676,10 @@ spi_dv_device_echo_buffer(struct scsi_device *sdev, u8 *buffer, for (r = 0; r < retries; r++) { result = spi_execute(sdev, spi_write_buffer, REQ_OP_DRV_OUT, buffer, len, &sshdr); - if(result || !scsi_device_online(sdev)) { + if (result || !scsi_device_online(sdev)) { scsi_device_set_state(sdev, SDEV_QUIESCE); - if (scsi_sense_valid(&sshdr) + if (result > 0 && scsi_sense_valid(&sshdr) && sshdr.sense_key == ILLEGAL_REQUEST /* INVALID FIELD IN CDB */ && sshdr.asc == 0x24 && sshdr.ascq == 0x00) |