net: ipa: fix page free in ipa_endpoint_replenish_one()

commit 70132763d5d2e94cd185e3aa92ac6a3ba89068fa 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: 6a606b90153b8 ("net: ipa: allocate transaction in replenish loop")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index a53d7e6abe1ea6730a96bca48dbfbf59380a88d8..06a791d45f94bb20ae6fb6b4febc008a011aa2df 100644 (file)
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -1049,7 +1049,7 @@ 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;
 }