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[PATCH] fix libata inquiry VPD for ATAPI devices

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The following patch prevents libata from incorrectly modifying inquiry
VPD pages and command support data from ATAPI devices.  I have tested
the patch with a SATA ATAPI tape drive on an AHCI controller.

Patch is against kernel 2.4.32 with 2.4.32-libata1.patch applied.

Anthony J. Battersby
Cybernetics

Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tony Battersby 2005-12-21 16:35:44 -05:00 committed by Jeff Garzik
parent df7addbb45
commit fd71da468d
1 changed files with 1 additions and 4 deletions
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5
drivers/scsi/libata-scsi.c
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@ -2044,7 +2044,7 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
else {
u8 *scsicmd = cmd->cmnd;
if (scsicmd[0] == INQUIRY) {
if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
u8 *buf = NULL;
unsigned int buflen;
@ -2057,9 +2057,6 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
* to indicate to the Linux scsi midlayer this is a modern
* device. 2) Ensure response data format / ATAPI information
* are always correct.
*/
/* FIXME: do we ever override EVPD pages and the like, with
* this code?
*/
if (buf[2] == 0) {
buf[2] = 0x5;