diff options
| author | Kees Cook <keescook@chromium.org> | 2018-05-09 02:08:53 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-06-06 21:15:43 +0300 |
| commit | 0ed2dd03b94b7b7f66e23f25073b5385d0416589 (patch) | |
| tree | 5b46cbc179ffcdaf40715d53b8308f5a937b5c40 /drivers/net/can/peak_canfd | |
| parent | b4b06db115bbbc10252287ae2d326fb5ecefaf18 (diff) | |
| download | linux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.xz | |
treewide: Use struct_size() for devm_kmalloc() and friends
Replaces open-coded struct size calculations with struct_size() for
devm_*, f2fs_*, and sock_* allocations. Automatically generated (and
manually adjusted) from the following Coccinelle script:
// Direct reference to struct field.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)
// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@
- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)
// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@
- alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/net/can/peak_canfd')
| -rw-r--r-- | drivers/net/can/peak_canfd/peak_pciefd_main.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c index 3c51a884db87..b9e28578bc7b 100644 --- a/drivers/net/can/peak_canfd/peak_pciefd_main.c +++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c @@ -752,8 +752,7 @@ static int peak_pciefd_probe(struct pci_dev *pdev, can_count = 1; /* allocate board structure object */ - pciefd = devm_kzalloc(&pdev->dev, sizeof(*pciefd) + - can_count * sizeof(*pciefd->can), + pciefd = devm_kzalloc(&pdev->dev, struct_size(pciefd, can, can_count), GFP_KERNEL); if (!pciefd) { err = -ENOMEM; |