lkml.org 
[lkml]   [2012]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ppdev: ppdev_init: do not return zero in case of failure
Date
Error handling of parport_register_driver() in ppdev_init()
is broken because it deallocates all resources but still
returns zero.

Currently parport_register_driver() always succeeds.
Nevertheless it is worth to fix the issue.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/char/ppdev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 3fcf80f..d0d824e 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -783,7 +783,8 @@ static int __init ppdev_init (void)
err = PTR_ERR(ppdev_class);
goto out_chrdev;
}
- if (parport_register_driver(&pp_driver)) {
+ err = parport_register_driver(&pp_driver);
+ if (err < 0) {
printk (KERN_WARNING CHRDEV ": unable to register with parport\n");
goto out_class;
}
--
1.7.9.5


\
 
 \ /
  Last update: 2012-09-01 22:41    [W:0.050 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site