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soc: qcom: smem: Use struct_size()

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Use struct_size() instead of hand-writing it, when allocating a structure
with a flex array.

This is less verbose.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/f74328551cfab0262ba353f37d047ac74bf616e1.1689194490.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-07-12 22:42:15 +02:00 committed by Bjorn Andersson
parent 7bc1cfaee1
commit cbdd13bfea
1 changed files with 2 additions and 3 deletions
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5
drivers/soc/qcom/smem.c
View file

@ -1059,7 +1059,6 @@ static int qcom_smem_probe(struct platform_device *pdev)
struct reserved_mem *rmem;
struct qcom_smem *smem;
unsigned long flags;
size_t array_size;
int num_regions;
int hwlock_id;
u32 version;
@ -1071,8 +1070,8 @@ static int qcom_smem_probe(struct platform_device *pdev)
if (of_property_present(pdev->dev.of_node, "qcom,rpm-msg-ram"))
num_regions++;
array_size = num_regions * sizeof(struct smem_region);
smem = devm_kzalloc(&pdev->dev, sizeof(*smem) + array_size, GFP_KERNEL);
smem = devm_kzalloc(&pdev->dev, struct_size(smem, regions, num_regions),
GFP_KERNEL);
if (!smem)
return -ENOMEM;