linux-kernel - [PATCH] HID: usbhid: hid-pidff: Fix missing error code in hid_pidff

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Message-Id: <1622545518-18949-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Tue,  1 Jun 2021 19:05:18 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     jikos@...nel.org
Cc:     benjamin.tissoires@...hat.com, linux-usb@...r.kernel.org,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] HID: usbhid: hid-pidff: Fix missing error code in hid_pidff_init()

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'error'.

Eliminate the follow smatch warning:

drivers/hid/usbhid/hid-pidff.c:1297 hid_pidff_init() warn: missing error
code 'error'.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/hid/usbhid/hid-pidff.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c
index ea126c5..731b49e 100644
--- a/drivers/hid/usbhid/hid-pidff.c
+++ b/drivers/hid/usbhid/hid-pidff.c
@@ -1294,6 +1294,7 @@ int hid_pidff_init(struct hid_device *hid)
 	    pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
 		hid_notice(hid,
 			   "device does not support device managed pool\n");
+		error = -EINVAL;
 		goto fail;
 	}
 
-- 
1.8.3.1