3.11.10.2 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Matt Wilson <[email protected]> commit 14883a75ec76b44759385fb12629f4a0f1aef4e3 upstream. Commit f62805f1 introduced a bug where lazy MMU mode isn't exited if a m2p_add/remove_override call fails. Acked-by: Stefano Stabellini <[email protected]> Cc: Boris Ostrovsky <[email protected]> Reviewed-by: David Vrabel <[email protected]> Reviewed-by: Anthony Liguori <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Matt Wilson <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/xen/grant-table.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index c4d2298..255e828 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -921,9 +921,10 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, ret = m2p_add_override(mfn, pages[i], kmap_ops ? &kmap_ops[i] : NULL); if (ret) - return ret; + goto out; } + out: if (lazy) arch_leave_lazy_mmu_mode(); @@ -954,9 +955,10 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops, ret = m2p_remove_override(pages[i], kmap_ops ? &kmap_ops[i] : NULL); if (ret) - return ret; + goto out; } + out: if (lazy) arch_leave_lazy_mmu_mode(); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
