| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.14 002/168] swiotlb-xen: avoid double free | Date | Mon, 20 Sep 2021 18:42:20 +0200 |
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From: Jan Beulich <jbeulich@suse.com>
commit ce6a80d1b2f923b1839655a1cda786293feaa085 upstream.
Of the two paths leading to the "error" label in xen_swiotlb_init() one didn't allocate anything, while the other did already free what was allocated.
Fixes: b82776005369 ("xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used") Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: stable@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/ce9c2adb-8a52-6293-982a-0d6ece943ac6@suse.com Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/xen/swiotlb-xen.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -216,7 +216,6 @@ error: goto retry; } pr_err("%s (rc:%d)\n", xen_swiotlb_error(m_ret), rc); - free_pages((unsigned long)start, order); return rc; }
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