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USB: serial: mos7840: fix NULL-deref at open
[pandora-kernel.git]
/
drivers
/
usb
/
serial
/
mos7840.c
diff --git
a/drivers/usb/serial/mos7840.c
b/drivers/usb/serial/mos7840.c
index
59fdb84
..
6469d30
100644
(file)
--- a/
drivers/usb/serial/mos7840.c
+++ b/
drivers/usb/serial/mos7840.c
@@
-2386,6
+2386,12
@@
static int mos7840_startup(struct usb_serial *serial)
return -1;
}
+ if (serial->num_bulk_in < serial->num_ports ||
+ serial->num_bulk_out < serial->num_ports) {
+ dev_err(&serial->interface->dev, "missing endpoints\n");
+ return -ENODEV;
+ }
+
dev = serial->dev;
dbg("%s", "Entering...");