diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
| commit | 2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch) | |
| tree | 726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /drivers/scsi/scsi_scan.c | |
| parent | e12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff) | |
| parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
| download | linux-fsl-qoriq-2ca1a615835d9f4990f42102ab1f2ef434e7e89c.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b14dc02..18486b5 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -216,7 +216,7 @@ static void scsi_unlock_floptical(struct scsi_device *sdev, scsi_cmd[4] = 0x2a; /* size */ scsi_cmd[5] = 0; scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, result, 0x2a, NULL, - SCSI_TIMEOUT, 3); + SCSI_TIMEOUT, 3, NULL); } /** @@ -573,6 +573,8 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, /* Each pass gets up to three chances to ignore Unit Attention */ for (count = 0; count < 3; ++count) { + int resid; + memset(scsi_cmd, 0, 6); scsi_cmd[0] = INQUIRY; scsi_cmd[4] = (unsigned char) try_inquiry_len; @@ -581,7 +583,8 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, result = scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, inq_result, try_inquiry_len, &sshdr, - HZ / 2 + HZ * scsi_inq_timeout, 3); + HZ / 2 + HZ * scsi_inq_timeout, 3, + &resid); SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO "scsi scan: INQUIRY %s " "with code 0x%x\n", @@ -602,6 +605,14 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, (sshdr.ascq == 0)) continue; } + } else { + /* + * if nothing was transferred, we try + * again. It's a workaround for some USB + * devices. + */ + if (resid == try_inquiry_len) + continue; } break; } @@ -1390,7 +1401,7 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, result = scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, lun_data, length, &sshdr, - SCSI_TIMEOUT + 4 * HZ, 3); + SCSI_TIMEOUT + 4 * HZ, 3, NULL); SCSI_LOG_SCAN_BUS(3, printk (KERN_INFO "scsi scan: REPORT LUNS" " %s (try %d) result 0x%x\n", result |