mirror of https://gitee.com/openkylin/linux.git
kcore: fix test for end of list
"m" is never NULL here. We need a different test for the end of list condition. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -490,7 +490,7 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
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}
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read_unlock(&kclist_lock);
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if (m == NULL) {
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if (&m->list == &kclist_head) {
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if (clear_user(buffer, tsz))
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return -EFAULT;
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} else if (is_vmalloc_or_module_addr((void *)start)) {
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