git.openpandora.org
/
pandora-kernel.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
| inline |
side by side
moxa: prevent opening unavailable ports
[pandora-kernel.git]
/
drivers
/
char
/
moxa.c
diff --git
a/drivers/char/moxa.c
b/drivers/char/moxa.c
index
4a4cab7
..
65b6ff2
100644
(file)
--- a/
drivers/char/moxa.c
+++ b/
drivers/char/moxa.c
@@
-1184,6
+1184,11
@@
static int moxa_open(struct tty_struct *tty, struct file *filp)
return -ENODEV;
}
+ if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) {
+ mutex_unlock(&moxa_openlock);
+ return -ENODEV;
+ }
+
ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
ch->port.count++;
tty->driver_data = ch;