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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-12 10:00:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-12 10:00:15 -0800
commitaefd140437aab84afeec0be48dd6871c2113a746 (patch)
tree275015c16f7b6f80a7409d4f9c81ae1ad178d44f /drivers/xen
parent4e67483a6f6f08b96a5e8833f3587c1255b08add (diff)
parentcf2acf66ad43abb39735568f55e1f85f9844e990 (diff)
Merge tag 'for-linus-4.15-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross: "This contains two build fixes for clang and two fixes for rather unlikely situations in the Xen gntdev driver" * tag 'for-linus-4.15-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/gntdev: Fix partial gntdev_mmap() cleanup xen/gntdev: Fix off-by-one error when unmapping with holes x86: xen: remove the use of VLAIS x86/xen/time: fix section mismatch for xen_init_time_ops()
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/gntdev.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 57efbd3b053b..bd56653b9bbc 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -380,10 +380,8 @@ static int unmap_grant_pages(struct grant_map *map, int offset, int pages)
}
range = 0;
while (range < pages) {
- if (map->unmap_ops[offset+range].handle == -1) {
- range--;
+ if (map->unmap_ops[offset+range].handle == -1)
break;
- }
range++;
}
err = __unmap_grant_pages(map, offset, range);
@@ -1073,8 +1071,10 @@ unlock_out:
out_unlock_put:
mutex_unlock(&priv->lock);
out_put_map:
- if (use_ptemod)
+ if (use_ptemod) {
map->vma = NULL;
+ unmap_grant_pages(map, 0, map->count);
+ }
gntdev_put_map(priv, map);
return err;
}

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