提交 f7f6b55d 编写于 作者: A Alex Elder 提交者: Zheng Zengkai

net: ipa: fix page free in ipa_endpoint_replenish_one()

stable inclusion
from stable-v5.10.121
commit d27f0000d7d46e3adcc4c04a2208ae2d7ce711c9
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5L6CQ

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d27f0000d7d46e3adcc4c04a2208ae2d7ce711c9

--------------------------------

commit 70132763 upstream.

Currently the (possibly compound) pages used for receive buffers are
freed using __free_pages().  But according to this comment above the
definition of that function, that's wrong:
    If you want to use the page's reference count to decide
    when to free the allocation, you should allocate a compound
    page, and use put_page() instead of __free_pages().

Convert the call to __free_pages() in ipa_endpoint_replenish_one()
to use put_page() instead.

Fixes: 6a606b90 ("net: ipa: allocate transaction in replenish loop")
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
上级 6744c75a
......@@ -884,7 +884,7 @@ static int ipa_endpoint_replenish_one(struct ipa_endpoint *endpoint)
err_trans_free:
gsi_trans_free(trans);
err_free_pages:
__free_pages(page, get_order(IPA_RX_BUFFER_SIZE));
put_page(page);
return -ENOMEM;
}
......
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