From: Jesper Juhl <[email protected]>
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 <[email protected]>
---
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;
-
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