hi,
i am trying to pass a file name to a /proc file and
then process it.
The file name is received properly by the /proc file
and when i try to pass it to another funtion where i
try to get the inode number the path_walk() funtion
gives an error.
The code where i receive the data and pass it to the
other funtion is :
-----snip-----
if(copy_from_user(data, buffer, len)) {
MOD_DEC_USE_COUNT;
return -EFAULT;
}
data[len] = '\0';
printk(KERN_ALERT "Data received : %s",data);
tmp = sprintf(fname,"%s",data);
compute_inod(fname);
kfree(data);
-----snip-----
The path_walk() call inside compute_inod() is :
----snip----
printk("fname is %s\n",fname);
if(path_init(fname,LOOKUP_POSITIVE|LOOKUP_FOLLOW,&nd)){
error = path_walk(fname, &nd);
printk("path walk gives %d\n",error);
}
----snip----
The fname passed on to the compute_inod also contains
the exact file name that was received into the
variable data.
The path_walk() returns an error code number -2.
What does error code -2 mean ?? where could i find
more information about what the different error number
mean ?
TIA
Karthik
__________________________________________________
Do You Yahoo!?
Yahoo! Autos - Get free new car price quotes
http://autos.yahoo.com
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
FAQ: http://kernelnewbies.org/faq/
