From: Chih-En Lin <shiyn.lin@gmail.com>
Date: Thu, 3 Nov 2022 17:16:14 +0000 (+0800)
Subject: vinput: Fix missing error code
X-Git-Tag: latest~46^2
X-Git-Url: https://www.ivnss.com/gitweb/?a=commitdiff_plain;h=d81d968b0e181a93d225028b4741bf2fe060bd94;p=lkmpg

vinput: Fix missing error code

Fix the missing error code when register_chrdev() failed.
The report is from Smatch:

Smatch failed: 1 warning(s), 0 error(s)
/home/runner/work/lkmpg/lkmpg/examples/vinput.c:372 vinput_init() warn: missing error code 'err'
---

diff --git a/examples/vinput.c b/examples/vinput.c
index b692d3f..21bd9aa 100644
--- a/examples/vinput.c
+++ b/examples/vinput.c
@@ -369,6 +369,7 @@ static int __init vinput_init(void)
     vinput_dev = register_chrdev(0, DRIVER_NAME, &vinput_fops);
     if (vinput_dev < 0) {
         pr_err("vinput: Unable to allocate char dev region\n");
+        err = vinput_dev;
         goto failed_alloc;
     }