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HID: bpf: return non NULL data pointer when CONFIG_HID_BPF is not set
dispatch_hid_bpf_device_event() is supposed to return either an error,
or a valid pointer to memory containing the data.
Returning NULL simply makes a segfault when CONFIG_HID_BPF is not set
for any processed event.
Fixes: 658ee5a64f
("HID: bpf: allocate data memory for device_event BPF program")
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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1 changed files with 1 additions and 1 deletions
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@ -148,7 +148,7 @@ void hid_bpf_device_init(struct hid_device *hid);
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u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *size);
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#else /* CONFIG_HID_BPF */
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static inline u8 *dispatch_hid_bpf_device_event(struct hid_device *hid, enum hid_report_type type,
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u8 *data, u32 *size, int interrupt) { return NULL; }
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u8 *data, u32 *size, int interrupt) { return data; }
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static inline int hid_bpf_connect_device(struct hid_device *hdev) { return 0; }
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static inline void hid_bpf_disconnect_device(struct hid_device *hdev) {}
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static inline void hid_bpf_destroy_device(struct hid_device *hid) {}
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