From c41a24ce1fe13638732885859011321af862960a Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 25 Mar 2006 03:07:02 -0800 Subject: [PATCH] [PATCH] ISDN: fix copy_to_user() unused result warning in isdn_ppp 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 Signed-off-by: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/i4l/isdn_ppp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index 1a19a0f894..b9fed8a3bc 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; -- 2.39.5