From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Mon, 17 Sep 2012 08:12:00 +0000 (+0200)
Subject: drivers/s390/char/monreader.c: fix error return code
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=72abaadf25f2bc6098740622e4ed526775b197f9;p=linux-beck.git

drivers/s390/char/monreader.c: fix error return code

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 5b8b8592d311..f4ff515db251 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -571,8 +571,11 @@ static int __init mon_init(void)
 	if (rc)
 		goto out_iucv;
 	monreader_device = kzalloc(sizeof(struct device), GFP_KERNEL);
-	if (!monreader_device)
+	if (!monreader_device) {
+		rc = -ENOMEM;
 		goto out_driver;
+	}
+
 	dev_set_name(monreader_device, "monreader-dev");
 	monreader_device->bus = &iucv_bus;
 	monreader_device->parent = iucv_root;