>From 9ea09e194d6ccdd0b229b408df1c86b43b1fdd7d Mon Sep 17 00:00:00 2001
From: santhosh pai <santhosh.pai88@xxxxxxxxx>
Date: Mon, 22 Jun 2015 23:26:33 +0530
Subject: [PATCH 2/2] staging : Comedi : comedi_fops : Fixed the return error
code
try_module_get fails when the reference count of the module is not
allowed to be incremented ,and hence -ENXIO is returned indicating
no device or address.
Signed-off-by: santhosh pai <santhosh.pai88@xxxxxxxxx>
---
drivers/staging/comedi/comedi_fops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index d6a37e9..1ab443c 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2606,7 +2606,7 @@ static int comedi_open(struct inode *inode, struct file *file)
}
if (dev->attached && dev->use_count == 0) {
if (!try_module_get(dev->driver->module)) {
- rc = -EPERM;
+ rc = -ENXIO;
goto out;
}
if (dev->open) {
--
1.7.9.5
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