scsi: core: doc. fixes to scsi_common.c

Clean up some comment typos and fix some errors in documentation.

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Nicholas Bellinger <[e-mail]>
Cc: Sagi Grimberg <[e-mail]>
Cc: Bart Van Assche <[e-mail]>
Reviewed-by: Bart Van Assche <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/scsi_common.c

···
 
 /* NB: These are exposed through /proc/scsi/scsi and form part of the ABI.
  * You may not alter any existing entry (although adding new ones is
- * encouraged once assigned by ANSI/INCITS T10
+ * encouraged once assigned by ANSI/INCITS T10).
  */
 static const char *const scsi_device_types[] = {
 	"Direct-Access    ",
···
 };
 
 /**
- * scsi_device_type - Return 17 char string indicating device type.
+ * scsi_device_type - Return 17-char string indicating device type.
  * @type: type number to look up
  */
 const char *scsi_device_type(unsigned type)
···
  * @scsilun:	struct scsi_lun to be converted.
  *
  * Description:
- *     Convert @scsilun from a struct scsi_lun to a four byte host byte-ordered
+ *     Convert @scsilun from a struct scsi_lun to a four-byte host byte-ordered
  *     integer, and return the result. The caller must check for
  *     truncation before using this function.
  *
···
  *     back into the lun value.
  *
  * Notes:
- *     Given an integer : 0x0b03d204,  this function returns a
+ *     Given an integer : 0x0b03d204, this function returns a
  *     struct scsi_lun of: d2 04 0b 03 00 00 00 00
  *
  */
···
 
 /**
  * scsi_build_sense_buffer - build sense data in a buffer
- * @desc:	Sense format (non zero == descriptor format,
+ * @desc:	Sense format (non-zero == descriptor format,
  *              0 == fixed format)
  * @buf:	Where to build sense data
  * @key:	Sense key
···
  * @info:	64-bit information value to be set
  *
  * Return value:
- *	0 on success or EINVAL for invalid sense buffer length
+ *	0 on success or -EINVAL for invalid sense buffer length
  **/
 int scsi_set_sense_information(u8 *buf, int buf_len, u64 info)
 {
···
  * @cd:		command/data bit
  *
  * Return value:
- *	0 on success or EINVAL for invalid sense buffer length
+ *	0 on success or -EINVAL for invalid sense buffer length
  */
 int scsi_set_sense_field_pointer(u8 *buf, int buf_len, u16 fp, u8 bp, bool cd)
 {