From: Roel Kluin <12o3l@tiscali.nl>
Date: Thu, 17 Apr 2008 04:16:24 +0000 (+0200)
Subject: USB: mos7840: test and propagate set_uart_reg return value
X-Git-Tag: v2.6.26-rc1~11^2~20
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=87521c46f63f0e1cac2bf8af08942ac47bb25de5;p=linux-2.6-omap-h63xx.git

USB: mos7840: test and propagate set_uart_reg return value

The test for an mos7840_set_uart_reg() error return value only works when
status is signed. propagate its error value.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Cc: SL Baur <steve@xemacs.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 6bcb82d3911..78f2f6db494 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1713,7 +1713,7 @@ static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file,
 {
 	struct moschip_port *mos7840_port;
 	unsigned int mcr;
-	unsigned int status;
+	int status;
 
 	dbg("%s - port %d", __func__, port->number);
 
@@ -1740,11 +1740,10 @@ static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file,
 
 	mos7840_port->shadowMCR = mcr;
 
-	status = 0;
 	status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
 	if (status < 0) {
 		dbg("setting MODEM_CONTROL_REGISTER Failed\n");
-		return -1;
+		return status;
 	}
 
 	return 0;