linux-kernel - [PATCH v2 2/3] staging: panel: return register value

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Date:	Mon,  9 Mar 2015 20:08:24 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Willy Tarreau <willy@...a-x.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] staging: panel: return register value

we were returning success even if the module failed to register.
now we are returning the actual return value, success or error.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---

v2: added the error message if parport_register_driver() fails.

 drivers/staging/panel/panel.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index 3ef3dcf..65872fa 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -2254,7 +2254,7 @@ static struct parport_driver panel_driver = {
 /* init function */
 static int __init panel_init_module(void)
 {
-	int selected_keypad_type = NOT_SET;
+	int selected_keypad_type = NOT_SET, err;
 
 	/* take care of an eventual profile */
 	switch (profile) {
@@ -2360,9 +2360,10 @@ static int __init panel_init_module(void)
 		return -ENODEV;
 	}
 
-	if (parport_register_driver(&panel_driver)) {
+	err = parport_register_driver(&panel_driver);
+	if (err) {
 		pr_err("could not register with parport. Aborting.\n");
-		return -EIO;
+		return err;
 	}
 
 	if (pprt)
-- 
1.8.1.2

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