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freeldr: seek to correct sector number, even after ~4GB.

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See issue #6669 for more details.

svn path=/trunk/; revision=56981
This commit is contained in:
Hervé Poussineau 2012-07-29 15:45:57 +00:00
parent 268d481877
commit f8b87477ce
1 changed files with 2 additions and 1 deletions
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3
reactos/boot/freeldr/freeldr/fs/fat.c
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@ -1338,7 +1338,8 @@ BOOLEAN FatReadVolumeSectors(PFAT_VOLUME_INFO Volume, ULONG SectorNumber, ULONG
//
// Seek to right position
//
Position.QuadPart = SectorNumber * 512;
Position.HighPart = SectorNumber >> 9;
Position.LowPart = SectorNumber << 9;
ret = ArcSeek(Volume->DeviceId, &Position, SeekAbsolute);
if (ret != ESUCCESS)
{