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| author | Jiri Kosina <jkosina@suse.cz> | 2022-01-10 09:56:57 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2022-01-10 09:56:57 +0100 |
| commit | 3551a3ff8229e15d2a4b47b8234923bc72da65ef (patch) | |
| tree | a62465753397b0268529a5d0b9ab43a8840069ad /drivers/ata/libata-scsi.c | |
| parent | 906095af85e8b2e53ee9f8c50b3dff365aa09df8 (diff) | |
| parent | 33a5c2793451770cb6dcf0cc35c76cfd4b045513 (diff) | |
| download | linux-3551a3ff8229e15d2a4b47b8234923bc72da65ef.tar.gz linux-3551a3ff8229e15d2a4b47b8234923bc72da65ef.tar.bz2 linux-3551a3ff8229e15d2a4b47b8234923bc72da65ef.zip | |
Merge branch 'for-5.17/letsketch' into for-linus
- new driver to support for LetSketch device (Hans de Goede)
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 1b84d5526d77..313e9475507b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2859,8 +2859,19 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) goto invalid_fld; } - if (ata_is_ncq(tf->protocol) && (cdb[2 + cdb_offset] & 0x3) == 0) - tf->protocol = ATA_PROT_NCQ_NODATA; + if ((cdb[2 + cdb_offset] & 0x3) == 0) { + /* + * When T_LENGTH is zero (No data is transferred), dir should + * be DMA_NONE. + */ + if (scmd->sc_data_direction != DMA_NONE) { + fp = 2 + cdb_offset; + goto invalid_fld; + } + + if (ata_is_ncq(tf->protocol)) + tf->protocol = ATA_PROT_NCQ_NODATA; + } /* enable LBA */ tf->flags |= ATA_TFLAG_LBA; |