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| author | Hannes Reinecke <hare@suse.de> | 2013-07-01 15:16:23 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-08-23 18:31:59 +0200 |
| commit | 0f7f6234d360341d74cfd6e77fcb315daf9905fd (patch) | |
| tree | f954a89140ce83a06b30fdacc4aef90938961b44 /drivers/scsi/scsi_lib.c | |
| parent | [SCSI] st: convert class code to use dev_groups (diff) | |
| download | linux-0f7f6234d360341d74cfd6e77fcb315daf9905fd.tar.xz linux-0f7f6234d360341d74cfd6e77fcb315daf9905fd.zip | |
[SCSI] Document enhanced error codes
Document the various error codes returned on I/O failure.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 124392f3091e..e2af8ae0d0ca 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -716,6 +716,18 @@ void scsi_release_buffers(struct scsi_cmnd *cmd) } EXPORT_SYMBOL(scsi_release_buffers); +/** + * __scsi_error_from_host_byte - translate SCSI error code into errno + * @cmd: SCSI command (unused) + * @result: scsi error code + * + * Translate SCSI error code into standard UNIX errno. + * Return values: + * -ENOLINK temporary transport failure + * -EREMOTEIO permanent target failure, do not retry + * -EBADE permanent nexus failure, retry on other path + * -EIO unspecified I/O error + */ static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result) { int error = 0; |