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[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 <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>
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1 changed files with 2 additions and 1 deletions
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@ -782,7 +782,8 @@ isdn_ppp_read(int min, struct file *file, char __user *buf, int count)
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is->first = b;
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spin_unlock_irqrestore(&is->buflock, flags);
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copy_to_user(buf, save_buf, count);
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if (copy_to_user(buf, save_buf, count))
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count = -EFAULT;
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kfree(save_buf);
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return count;
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