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firmware: dmi-id: add a release callback function

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dmi_class uses kfree() as the .release function, but that now causes
a warning with clang-16 as it violates control flow integrity (KCFI)
rules:

drivers/firmware/dmi-id.c:174:17: error: cast from 'void (*)(const void *)' to 'void (*)(struct device *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
  174 |         .dev_release = (void(*)(struct device *)) kfree,

Add an explicit function to call kfree() instead.

Fixes: 4f5c791a85 ("DMI-based module autoloading")
Link: https://lore.kernel.org/lkml/20240213100238.456912-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
This commit is contained in:
Arnd Bergmann 2024-04-08 09:34:24 +02:00 committed by Jean Delvare
parent e8f897f4af
commit cf770af564
1 changed files with 6 additions and 1 deletions
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7
drivers/firmware/dmi-id.c
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@ -169,9 +169,14 @@ static int dmi_dev_uevent(const struct device *dev, struct kobj_uevent_env *env)
return 0;
}
static void dmi_dev_release(struct device *dev)
{
kfree(dev);
}
static struct class dmi_class = {
.name = "dmi",
.dev_release = (void(*)(struct device *)) kfree,
.dev_release = dmi_dev_release,
.dev_uevent = dmi_dev_uevent,
};