Last visit was: It is currently Thu Dec 05, 2024 11:02 am


All times are UTC-05:00




Post new topic Reply to topic  [6 posts ] 
    Author Message
     Post subject:Function Parameter May Be Uninitialized?
    PostPosted:Mon Oct 11, 2010 6:18 pm 
    User avatar
     

    Joined:Sun Feb 12, 2006 8:56 pm
    Posts:1019
    Website:http://eddieringle.com
    Location:Detroit, MI
    This popped up in IRC while attempting to disable write protection on the G2's nand (specific information on that is here):
    Code:
    <scotty2> static inline loff_t fat_make_i_pos(struct super_block *sb, <scotty2> struct buffer_head *bh, <scotty2> struct msdos_dir_entry *de) <scotty2> { <scotty2> return ((loff_t)bh->b_blocknr << MSDOS_SB(sb)->dir_per_block_bits) <scotty2> | (de - (struct msdos_dir_entry *)bh->b_data); <scotty2> } <scotty2> how the **** could de possibly be uninitialized. <scotty2> fs/fat/dir.c:30: error: 'de' may be used uninitialized in this function
    Anyone ever run into this before?

    _________________
    -- Eddie Ringle

    Check out Elysian Shadows and consider backing us on Kickstarter!

    ====================================

    Image


    Top
    Offline  
     Post subject:Re: Function Parameter May Be Uninitialized?
    PostPosted:Tue Oct 12, 2010 12:17 am 
    Literally Nine
    User avatar
     

    Joined:Sat Apr 02, 2005 3:31 pm
    Posts:1171
    Location:The vicinity of an area adjacent to a location.
    You didn't provide any details. Compiler, compiler version, etc.

    _________________
    - Tycho

    Image


    Top
    Offline  
     Post subject:Re: Function Parameter May Be Uninitialized?
    PostPosted:Tue Oct 12, 2010 9:58 am 
    External Project Staff
    User avatar
     

    Joined:Sun Oct 30, 2005 3:40 pm
    Posts:371
    Website:http://idlesoft.net
    Location:~/
    G2 is an Android device. Android uses the linux kernel. This code looks like its part of the kernel. The android NDK contains GCC4.4 . So by deduction I say that was the compiler used.

    _________________
    -- ChaosR

    Image


    Top
    Offline  
     Post subject:Re: Function Parameter May Be Uninitialized?
    PostPosted:Tue Oct 12, 2010 2:03 pm 
    Connoisseur of the Godawful
    User avatar
     

    Joined:Tue Mar 01, 2005 9:00 am
    Posts:456
    ICQ:286315965
    Website:http://rabidtinker.mine.nu/
    Yahoo Messenger:alistair_lynn
    AOL:Agent_Vast@mac.com
    Location:127.0.0.1
    Please show the compiler invocation, and, crucially, the callsite of this function.

    _________________
    Alastair Lynn / Alumnus / Onlink Team


    Top
    Offline  
     Post subject:Re: Function Parameter May Be Uninitialized?
    PostPosted:Thu Dec 16, 2010 4:35 pm 
    User avatar
     

    Joined:Sun Feb 12, 2006 8:56 pm
    Posts:1019
    Website:http://eddieringle.com
    Location:Detroit, MI
    Quote:
    ... and, crucially, the callsite of this function.
    Are you suggesting that the function was passed an uninitialized argument?

    _________________
    -- Eddie Ringle

    Check out Elysian Shadows and consider backing us on Kickstarter!

    ====================================

    Image


    Top
    Offline  
     Post subject:Re: Function Parameter May Be Uninitialized?
    PostPosted:Thu Dec 16, 2010 7:26 pm 
    Connoisseur of the Godawful
    User avatar
     

    Joined:Tue Mar 01, 2005 9:00 am
    Posts:456
    ICQ:286315965
    Website:http://rabidtinker.mine.nu/
    Yahoo Messenger:alistair_lynn
    AOL:Agent_Vast@mac.com
    Location:127.0.0.1
    Yes.

    _________________
    Alastair Lynn / Alumnus / Onlink Team


    Top
    Offline  
    Display posts from previous: Sort by 
    Post new topic Reply to topic

      All times are UTC-05:00


      Who is online

      Users browsing this forum: No registered users and 1 guest


      You cannot post new topics in this forum
      You cannot reply to topics in this forum
      You cannot edit your posts in this forum
      You cannot delete your posts in this forum
      You cannot post attachments in this forum

      Search for:
      Jump to:  
      cron
      Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
      Theme created by Miah with assistance from hyprnova