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HID: uclogic: Add NULL check in uclogic_input_configured()

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[ Upstream commit bd07f751208ba190f9b0db5e5b7f35d5bb4a8a1e ]

devm_kasprintf() returns NULL when memory allocation fails. Currently,
uclogic_input_configured() does not check for this case, which results
in a NULL pointer dereference.

Add NULL check after devm_kasprintf() to prevent this issue.

Fixes: dd613a4e45 ("HID: uclogic: Correct devm device reference for hidinput input_dev name")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Henry Martin
2025-04-01 17:48:53 +08:00
committed by Greg Kroah-Hartman
parent 4715f16b1e
commit ad6caaf29b
1 changed files with 4 additions and 3 deletions
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7
drivers/hid/hid-uclogic-core.c
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@@ -142,11 +142,12 @@ static int uclogic_input_configured(struct hid_device *hdev,
suffix = "System Control";
break;
}
}
if (suffix)
} else {
hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", hdev->name, suffix);
if (!hi->input->name)
return -ENOMEM;
}
return 0;
}