Commit 090b7402 authored by Colin Ian King's avatar Colin Ian King Committed by Greg Kroah-Hartman

vxge: fix return of a free'd memblock on a failed dma mapping

[ Upstream commit 0a2c34f1 ]

Currently if a pci dma mapping failure is detected a free'd
memblock address is returned rather than a NULL (that indicates
an error). Fix this by ensuring NULL is returned on this error case.

Addresses-Coverity: ("Use after free")
Fixes: 528f7272 ("vxge: code cleanup and reorganization")
Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent f83beff2
......@@ -2365,6 +2365,7 @@ static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
dma_object->addr))) {
vxge_os_dma_free(devh->pdev, memblock,
&dma_object->acc_handle);
memblock = NULL;
goto exit;
}
......
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