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authorGustavo A. R. Silva <gustavo@embeddedor.com>2019-04-18 21:46:24 +0300
committerJoerg Roedel <jroedel@suse.de>2019-04-26 17:43:21 +0300
commit553d66cb1e8667aadb57e3804775c5ce1724a49b (patch)
tree3dc090290d3953b7d86de91166a4b612025a6129 /drivers/iommu
parentf7b0c4ce8cb3c09cb3cbfc0c663268bf99e5fa9c (diff)
downloadlinux-553d66cb1e8667aadb57e3804775c5ce1724a49b.tar.xz
iommu/vt-d: Use struct_size() helper
Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes, in particular in the context in which this code is being used. So, replace code of the following form: size = sizeof(*info) + level * sizeof(info->path[0]); with: size = struct_size(info, path, level); Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/dmar.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 9c49300e9fb7..6d969a172fbb 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -145,7 +145,7 @@ dmar_alloc_pci_notify_info(struct pci_dev *dev, unsigned long event)
for (tmp = dev; tmp; tmp = tmp->bus->self)
level++;
- size = sizeof(*info) + level * sizeof(info->path[0]);
+ size = struct_size(info, path, level);
if (size <= sizeof(dmar_pci_notify_info_buf)) {
info = (struct dmar_pci_notify_info *)dmar_pci_notify_info_buf;
} else {