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| author | Kees Cook <keescook@chromium.org> | 2018-05-08 16:08:53 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-06-06 11:15:43 -0700 |
| commit | 0ed2dd03b94b7b7f66e23f25073b5385d0416589 (patch) | |
| tree | 5b46cbc179ffcdaf40715d53b8308f5a937b5c40 /drivers/regulator/mc13892-regulator.c | |
| parent | b4b06db115bbbc10252287ae2d326fb5ecefaf18 (diff) | |
| download | linux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.gz | |
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/regulator/mc13892-regulator.c')
| -rw-r--r-- | drivers/regulator/mc13892-regulator.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index 0d17c9206816..15dd7bc7b529 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -547,9 +547,9 @@ static int mc13892_regulator_probe(struct platform_device *pdev) if (num_regulators <= 0) return -EINVAL; - priv = devm_kzalloc(&pdev->dev, sizeof(*priv) + - num_regulators * sizeof(priv->regulators[0]), - GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, + struct_size(priv, regulators, num_regulators), + GFP_KERNEL); if (!priv) return -ENOMEM; |