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ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()

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devm_kzalloc() may fail, clk_data->name might be NULL and will
cause a NULL pointer dereference later.

Signed-off-by: Kang Chen <void0red@gmail.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Kang Chen 2023-02-26 13:54:27 +08:00 committed by Rafael J. Wysocki
parent e8d018dd02
commit 4dea41775d
1 changed files with 2 additions and 0 deletions
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2
drivers/acpi/acpi_apd.c
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@ -83,6 +83,8 @@ static int fch_misc_setup(struct apd_private_data *pdata)
if (!acpi_dev_get_property(adev, "clk-name", ACPI_TYPE_STRING, &obj)) { if (!acpi_dev_get_property(adev, "clk-name", ACPI_TYPE_STRING, &obj)) {
clk_data->name = devm_kzalloc(&adev->dev, obj->string.length, clk_data->name = devm_kzalloc(&adev->dev, obj->string.length,
GFP_KERNEL); GFP_KERNEL);
if (!clk_data->name)
return -ENOMEM;
strcpy(clk_data->name, obj->string.pointer); strcpy(clk_data->name, obj->string.pointer);
} else { } else {