From 0f7f6234d360341d74cfd6e77fcb315daf9905fd Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 1 Jul 2013 15:16:23 +0200 Subject: [PATCH] [SCSI] Document enhanced error codes Document the various error codes returned on I/O failure. Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/scsi_lib.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 124392f..e2af8ae 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; -- 2.7.4