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path: root/drivers/xen/grant-table.c
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Diffstat (limited to 'drivers/xen/grant-table.c')
-rw-r--r--drivers/xen/grant-table.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 62ccf5424ba8..aa846a48f400 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -930,9 +930,10 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
930 ret = m2p_add_override(mfn, pages[i], kmap_ops ? 930 ret = m2p_add_override(mfn, pages[i], kmap_ops ?
931 &kmap_ops[i] : NULL); 931 &kmap_ops[i] : NULL);
932 if (ret) 932 if (ret)
933 return ret; 933 goto out;
934 } 934 }
935 935
936 out:
936 if (lazy) 937 if (lazy)
937 arch_leave_lazy_mmu_mode(); 938 arch_leave_lazy_mmu_mode();
938 939
@@ -969,9 +970,10 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
969 ret = m2p_remove_override(pages[i], kmap_ops ? 970 ret = m2p_remove_override(pages[i], kmap_ops ?
970 &kmap_ops[i] : NULL); 971 &kmap_ops[i] : NULL);
971 if (ret) 972 if (ret)
972 return ret; 973 goto out;
973 } 974 }
974 975
976 out:
975 if (lazy) 977 if (lazy)
976 arch_leave_lazy_mmu_mode(); 978 arch_leave_lazy_mmu_mode();
977 979
@@ -1174,7 +1176,8 @@ static int gnttab_setup(void)
1174 gnttab_shared.addr = xen_remap(xen_hvm_resume_frames, 1176 gnttab_shared.addr = xen_remap(xen_hvm_resume_frames,
1175 PAGE_SIZE * max_nr_gframes); 1177 PAGE_SIZE * max_nr_gframes);
1176 if (gnttab_shared.addr == NULL) { 1178 if (gnttab_shared.addr == NULL) {
1177 pr_warn("Failed to ioremap gnttab share frames!\n"); 1179 pr_warn("Failed to ioremap gnttab share frames (addr=0x%08lx)!\n",
1180 xen_hvm_resume_frames);
1178 return -ENOMEM; 1181 return -ENOMEM;
1179 } 1182 }
1180 } 1183 }