linux-kernel - [PATCH 5/5] Staging: comedi: proc: Warn if unable to create proc entry

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Date:   Fri, 30 Dec 2016 19:27:41 +0800
From:   Cheah Kok Cheong <thrust73@...il.com>
To:     abbotti@....co.uk, hsweeten@...ionengravers.com,
        gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Cheah Kok Cheong <thrust73@...il.com>
Subject: [PATCH 5/5] Staging: comedi: proc: Warn if unable to create proc entry

The proc entry is not essential for the comedi system as
evident by the support for !CONFIG_PROC_FS. So for failure
to create, just warn and continue loading.

Signed-off-by: Cheah Kok Cheong <thrust73@...il.com>
---
 drivers/staging/comedi/proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c
index 99b23b2e..2644dd4 100644
--- a/drivers/staging/comedi/proc.c
+++ b/drivers/staging/comedi/proc.c
@@ -89,7 +89,8 @@ static const struct file_operations comedi_proc_fops = {
 
 void __init comedi_proc_init(void)
 {
-	proc_create("comedi", 0444, NULL, &comedi_proc_fops);
+	if (!proc_create("comedi", 0444, NULL, &comedi_proc_fops))
+		pr_warn("comedi: unable to create proc entry\n");
 }
 
 void comedi_proc_cleanup(void)
-- 
2.7.4