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Avoid erasing non-existent signatures in undi_unload()

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Michael Brown 2007-01-09 02:53:24 +00:00
parent a2be828a33
commit ed44e3730d
1 changed files with 4 additions and 2 deletions
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6
src/arch/i386/drivers/net/undiload.c
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@ -170,8 +170,10 @@ int undi_unload ( struct undi_device *undi ) {
DBGC ( undi, "UNDI %p unloading\n", undi );
/* Erase signatures */
put_real ( dead, undi->pxenv.segment, undi->pxenv.offset );
put_real ( dead, undi->ppxe.segment, undi->ppxe.offset );
if ( undi->pxenv.segment )
put_real ( dead, undi->pxenv.segment, undi->pxenv.offset );
if ( undi->ppxe_segment )
put_real ( dead, undi->ppxe.segment, undi->ppxe.offset );
/* Free base memory, if possible */
get_real ( fbms, BDA_SEG, BDA_FBMS );