drivers/isdn/i4l/isdn_ppp.c:785: warning: ignoring return value of `copy_to_user', declared with attribute warn_unused_result
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
is->first = b;
spin_unlock_irqrestore(&is->buflock, flags);
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;
kfree(save_buf);
return count;