diff options
Diffstat (limited to 'drivers/isdn/i4l')
| -rw-r--r-- | drivers/isdn/i4l/isdn_ppp.c | 3 | ||||
| -rw-r--r-- | drivers/isdn/i4l/isdn_tty.c | 5 | ||||
| -rw-r--r-- | drivers/isdn/i4l/isdn_x25iface.c | 2 |
3 files changed, 7 insertions, 3 deletions
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index 1a19a0f8942..b9fed8a3bcc 100644 --- a/drivers/isdn/i4l/isdn_ppp.c +++ b/drivers/isdn/i4l/isdn_ppp.c @@ -782,7 +782,8 @@ isdn_ppp_read(int min, struct file *file, char __user *buf, int count) is->first = b; spin_unlock_irqrestore(&is->buflock, flags); - copy_to_user(buf, save_buf, count); + if (copy_to_user(buf, save_buf, count)) + count = -EFAULT; kfree(save_buf); return count; diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c index aeaa1db74bd..3585fb1f334 100644 --- a/drivers/isdn/i4l/isdn_tty.c +++ b/drivers/isdn/i4l/isdn_tty.c @@ -2345,12 +2345,15 @@ isdn_tty_at_cout(char *msg, modem_info * info) u_long flags; struct sk_buff *skb = NULL; char *sp = NULL; - int l = strlen(msg); + int l; if (!msg) { printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); return; } + + l = strlen(msg); + spin_lock_irqsave(&info->readlock, flags); tty = info->tty; if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) { diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c index edf14a2aa3c..743ac4077f3 100644 --- a/drivers/isdn/i4l/isdn_x25iface.c +++ b/drivers/isdn/i4l/isdn_x25iface.c @@ -7,7 +7,7 @@ * * stuff needed to support the Linux X.25 PLP code on top of devices that * can provide a lab_b service using the concap_proto mechanism. - * This module supports a network interface wich provides lapb_sematics + * This module supports a network interface which provides lapb_sematics * -- as defined in Documentation/networking/x25-iface.txt -- to * the upper layer and assumes that the lower layer provides a reliable * data link service by means of the concap_device_ops callbacks. |