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authorAlex Elder <elder@linaro.org>2022-05-26 18:23:13 +0300
committerJakub Kicinski <kuba@kernel.org>2022-05-28 04:29:50 +0300
commit155c0c90bca918de6e4327275dfc1d97fd604115 (patch)
treecc4fb33d98c5150215798edddd486b745abc389e /drivers/net/ipa/ipa_endpoint.c
parent4dc160a52da1330d54d561f9dac8a9e0ef333895 (diff)
downloadlinux-155c0c90bca918de6e4327275dfc1d97fd604115.tar.xz
net: ipa: fix page free in ipa_endpoint_trans_release()
Currently the (possibly compound) page 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_trans_release() to use put_page() instead. Fixes: ed23f02680caa ("net: ipa: define per-endpoint receive buffer size") Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ipa/ipa_endpoint.c')
-rw-r--r--drivers/net/ipa/ipa_endpoint.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 385aa63ab4bb..e92aa9447f6e 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -1418,11 +1418,8 @@ void ipa_endpoint_trans_release(struct ipa_endpoint *endpoint,
} else {
struct page *page = trans->data;
- if (page) {
- u32 buffer_size = endpoint->config.rx.buffer_size;
-
- __free_pages(page, get_order(buffer_size));
- }
+ if (page)
+ put_page(page);
}
}