tty: pr_warning->pr_warn and logging neatening

Convert the pr_warning to the more common pr_warn.

Other miscellanea:

o Convert unusual PR_FMT define and uses to pr_fmt
o Remove unnecessary OOM message
o Fix grammar in an error message
o Convert a pr_warning with a KERN_ERR to pr_err

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index d62d8da..984e1c0 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -517,14 +517,15 @@
 		up->csize = 5;
 		break;
 	default:
-		pr_warning("requested word length not supported\n");
+		pr_warn("requested word length not supported\n");
+		break;
 	}
 
 	if (termios->c_cflag & CSTOPB) {
 		up->stopb = 1;
 	}
 	if (termios->c_cflag & PARENB) {
-		pr_warning("PAREN bits is not supported yet\n");
+		pr_warn("PAREN bit is not supported yet\n");
 		/* up->parib = 1; */
 	}