diff options
| author | Andrea Righi <andrea.righi@canonical.com> | 2019-04-03 07:26:36 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2019-04-05 08:42:41 +0200 |
| commit | ad94dc3a7eb5fa6ff469dbcf401c44b14ad50595 (patch) | |
| tree | 04c7feffd21b0a2ecfdcb23b0293a8d44019c8ea | |
| parent | xen/balloon: Fix mapping PG_offline pages to user space (diff) | |
| download | linux-ad94dc3a7eb5fa6ff469dbcf401c44b14ad50595.tar.xz linux-ad94dc3a7eb5fa6ff469dbcf401c44b14ad50595.zip | |
xen: use struct_size() helper in kzalloc()
struct privcmd_buf_vma_private has a zero-sized array at the end
(pages), use the new struct_size() helper to determine the proper
allocation size and avoid potential type mistakes.
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
| -rw-r--r-- | drivers/xen/privcmd-buf.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/xen/privcmd-buf.c b/drivers/xen/privcmd-buf.c index de01a6d0059d..a1c61e351d3f 100644 --- a/drivers/xen/privcmd-buf.c +++ b/drivers/xen/privcmd-buf.c @@ -140,8 +140,7 @@ static int privcmd_buf_mmap(struct file *file, struct vm_area_struct *vma) if (!(vma->vm_flags & VM_SHARED)) return -EINVAL; - vma_priv = kzalloc(sizeof(*vma_priv) + count * sizeof(void *), - GFP_KERNEL); + vma_priv = kzalloc(struct_size(vma_priv, pages, count), GFP_KERNEL); if (!vma_priv) return -ENOMEM; |