linux-kernel - [PATCH 07/10] staging: gasket: fix gasket_free_coherent

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Message-Id: <20180917123905.213639-8-toddpoynor@gmail.com>
Date:   Mon, 17 Sep 2018 05:39:02 -0700
From:   Todd Poynor <toddpoynor@...il.com>
To:     Rob Springer <rspringer@...gle.com>,
        Ben Chan <benchan@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Nick Ewalt <nicholasewalt@...gle.com>,
        Todd Poynor <toddpoynor@...gle.com>
Subject: [PATCH 07/10] staging: gasket: fix gasket_free_coherent_memory metadata frees

From: Nick Ewalt <nicholasewalt@...gle.com>

Free gasket_coherent_page_entries metadata memory, update data
structures accordingly.

Signed-off-by: Nick Ewalt <nicholasewalt@...gle.com>
Signed-off-by: Todd Poynor <toddpoynor@...gle.com>
---
 drivers/staging/gasket/gasket_page_table.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index 33d98043953a5..c1ce8f984f8e0 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -1353,6 +1353,11 @@ int gasket_free_coherent_memory(struct gasket_dev *gasket_dev, u64 size,
 		gasket_dev->coherent_buffer.virt_base = NULL;
 		gasket_dev->coherent_buffer.phys_base = 0;
 	}
+
+	kfree(gasket_dev->page_table[index]->coherent_pages);
+	gasket_dev->page_table[index]->coherent_pages = NULL;
+	gasket_dev->page_table[index]->num_coherent_pages = 0;
+
 	return 0;
 }
 
-- 
2.19.0.397.gdd90340f6a-goog