[SCSI] sym53c8xx: fix resid calculation

This patch fixes the calculation of the data transfer residual for the
case of a command that is supposed to transfer an odd number of bytes on
a wide bus but transfers nothing instead.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index 254bdae..35142b5 100644 (file)
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -3842,7 +3842,7 @@ int sym_compute_residual(struct sym_hcb *np, struct sym_ccb *cp)
        if (cp->startp == cp->phys.head.lastp ||
            sym_evaluate_dp(np, cp, scr_to_cpu(cp->phys.head.lastp),
                            &dp_ofs) < 0) {
-               return cp->data_len;
+               return cp->data_len - cp->odd_byte_adjustment;
        }
 
        /*