Commit 0f7f6234 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by James Bottomley
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[SCSI] Document enhanced error codes 



Document the various error codes returned on I/O failure.

Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent c69c6be5

drivers/scsi/scsi_lib.c

+12 −0
Original line number Diff line number Diff line
@@ -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;