Messages in this thread Patch in this message | | | From | Jesper Juhl <> | Subject | [PATCH] ISDN: fix copy_to_user() unused result warning in isdn_ppp | Date | Tue, 21 Feb 2006 23:14:15 +0100 |
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From: Jesper Juhl <jesper.juhl@gmail.com>
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@gmail.com>
---
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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