From mboxrd@z Thu Jan  1 00:00:00 1970
From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
Date: Wed, 23 Feb 2011 00:50:22 +0700
Subject: adding a system call
In-Reply-To: <AANLkTin_GxoXJai071w81mgkVeCX6awTsYFrvccXHOWE@mail.gmail.com>
References: <AANLkTi=1wH+uVCPEGhXB7_UnAQp61ayKO6vee5Lg7GaD@mail.gmail.com>
	<AANLkTin_GxoXJai071w81mgkVeCX6awTsYFrvccXHOWE@mail.gmail.com>
Message-ID: <AANLkTimNcnZDO9aDKyuJaQJPnvAcKwmrvNFB1wV-CF4L@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Tue, Feb 22, 2011 at 22:18, mohit verma <mohit89mlnc@gmail.com> wrote:
> hi all ,
>>
>> i followed the link and tried to add a system call in kernel-version
>> 2.6.37
>> here is the code :
>>
>>
>> #include<linux/linkage.h>
>> #include<linux/kernel.h>
>> #include<linux/fs.h>? //for getname
>> #include<linux/err.h> //for PTR_ERR
>> asmlinkage int sys_hariohm(const char __user *filename)
>> {
>> ??? char *tmp = getname(filename);
>> ???? int fd=PTR_ERR(tmp);
>> ??????? if (!IS_ERR(tmp))
>> ??????? {
>> ??????? printk("filename %s \n",tmp);
>> ??????? putname(tmp);
>> ??????? return fd;
>> ??????? }
>> ??????? else
>> ??????? {
>> ??????? return 2;
>> ??????? }
>> }

which syscall number did you assigned to this syscall? and exactly how
do you assign it?

NB: your code style doesn't follow the Linux kernel coding standart....

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com