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swiotlb-xen: avoid double free

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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: b827760053 ("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>
This commit is contained in:
Jan Beulich 2021-09-07 14:04:25 +02:00 • committed by Juergen Gross
parent 45da234467
commit ce6a80d1b2
1 changed files with 0 additions and 1 deletions
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1
drivers/xen/swiotlb-xen.c
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@ -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;
}