libata: Trim trailing whitespace

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index e8483aa..a3b339b 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -305,7 +305,7 @@
 	u32 tmp, dev_mode[2];
 	unsigned int i;
 	int rc;
-	
+
 	rc = ata_do_set_mode(ap, r_failed);
 	if (rc)
 		return rc;