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Subject[PATCH] 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>
---

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index aeeb9cb..ef1ede2 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", __FUNCTION__, port->number);

@@ -1739,11 +1739,10 @@ 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;

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