tx4939ide: typo fix and minor cleanup

The bcount is greater than 0 and less than or equal to 0x10000.
Thus '(bcount & 0xffff) == 0x0000' can be simplified as 'bcount == 0x10000'.

Suggested-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 882f6f0..40b0812 100644 (file)
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -261,9 +261,9 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
                                bcount = cur_len;
                        /*
                         * This workaround for zero count seems required.
-                        * (standard ide_build_dmatable do it too)
+                        * (standard ide_build_dmatable does it too)
                         */
-                       if ((bcount & 0xffff) == 0x0000)
+                       if (bcount == 0x10000)
                                bcount = 0x8000;
                        *table++ = bcount & 0xffff;
                        *table++ = cur_addr;