[OpenAFS-devel] patch: better argument checking

[Nickolai Zeldovich]

More-or-less self-explanatory; argument checking is a good thing.

-- kolya

Index: afs_pioctl.c
===================================================================
RCS file: /cvs/openafs/src/afs/afs_pioctl.c,v
retrieving revision 1.3
diff -c -r1.3 afs_pioctl.c
*** afs_pioctl.c	2000/11/05 01:16:18	1.3
--- afs_pioctl.c	2000/12/01 02:39:17
***************
*** 2421,2426 ****
--- 2421,2428 ----
      afs_int32 cell, volume;
  
      AFS_STATCNT(PFlushVolumeData);
+     if (!avc)
+ 	return EINVAL;
      if ( !afs_resourceinit_flag ) 	/* afs deamons havn't started yet */
  	return EIO;          /* Inappropriate ioctl for device */