[PATCH] ISDN: fix copy_to_user() unused result warning in isdn_ppp

[Jesper Juhl]

From: Jesper Juhl <jesper.juhl@xxxxxxxxx>


Fix compile warning about copy_to_user() unused result in isdn_ppp.c
   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@xxxxxxxxx>

---

 drivers/isdn/i4l/isdn_ppp.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)

--- linux-2.6.16-rc4-mm1-orig/drivers/isdn/i4l/isdn_ppp.c	2006-01-03 04:21:10.000000000 +0100
+++ linux-2.6.16-rc4-mm1/drivers/isdn/i4l/isdn_ppp.c	2006-02-21 23:07:57.000000000 +0100
@@ -782,7 +782,10 @@ isdn_ppp_read(int min, struct file *file
 	is->first = b;
 
 	spin_unlock_irqrestore(&is->buflock, flags);
-	copy_to_user(buf, save_buf, count);
+	if (copy_to_user(buf, save_buf, count)) {
+		kfree(save_buf);
+		return -EFAULT;
+	}
 	kfree(save_buf);
 
 	return count;


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/