[SCSI] libsas: fix scr_read/write users and update the libata documentation

This fixes up the usage in libsas (which are easy to miss, since they're
only in the scsi-misc tree) ... and also corrects the documentation on
the point of what these two function pointers actually return.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl
index e2e24b4778d4..ba9975771503 100644
--- a/Documentation/DocBook/libata.tmpl
+++ b/Documentation/DocBook/libata.tmpl
@@ -456,8 +456,9 @@ void (*irq_clear) (struct ata_port *);
 
         <sect2><title>SATA phy read/write</title>
         <programlisting>
-u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
-void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
+int (*scr_read) (struct ata_port *ap, unsigned int sc_reg,
+                 u32 *val);
+int (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
                    u32 val);
         </programlisting>