From owner-cvs-all  Fri Mar 29 17:36: 7 2002
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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Fri, 29 Mar 2002 17:36:03 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/boot/efi/libefi efifs.c
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marcel      2002/03/29 17:36:03 PST

  Modified files:
    sys/boot/efi/libefi  efifs.c 
  Log:
  Don't blindly dereference f->f_devdata as if it's always a pointer to
  an efi_devdesc structure. When we're netbooting, f->f_devdata holds
  the address of the network socket variable. Dereferencing this caused
  some very unpredictable behaviour, including proper functioning.
  So, as a sanity check, we first make sure f->f_dev points to our
  own devsw. If not, the open will fail before we use f->f_devdata.
  
  This solves the netboot hangs I invariably got whenever I used the
  latest toolchain to compile the EFI loader.
  
  Revision  Changes    Path
  1.5       +6 -1      src/sys/boot/efi/libefi/efifs.c

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