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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 /sound/soc | |
parent | b4b06db115bbbc10252287ae2d326fb5ecefaf18 (diff) | |
download | linux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.gz linux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.tar.bz2 linux-0ed2dd03b94b7b7f66e23f25073b5385d0416589.zip |
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 'sound/soc')
-rw-r--r-- | sound/soc/qcom/apq8016_sbc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c index 704428735e3c..1dd23bba1bed 100644 --- a/sound/soc/qcom/apq8016_sbc.c +++ b/sound/soc/qcom/apq8016_sbc.c @@ -147,7 +147,8 @@ static struct apq8016_sbc_data *apq8016_sbc_parse_of(struct snd_soc_card *card) num_links = of_get_child_count(node); /* Allocate the private data and the DAI link array */ - data = devm_kzalloc(dev, sizeof(*data) + sizeof(*link) * num_links, + data = devm_kzalloc(dev, + struct_size(data, dai_link, num_links), GFP_KERNEL); if (!data) return ERR_PTR(-ENOMEM); |