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[FASTFAT] Lock DirResource on flush in case we're updating entry

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CORE-14660
This commit is contained in:
Pierre Schweitzer 2018-05-28 09:01:39 +02:00
parent 59dc951bf7
commit 9f3169b295
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GPG key ID: 7545556C3D585B0B
1 changed files with 3 additions and 0 deletions
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3
drivers/filesystems/fastfat/flush.c
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@ -33,6 +33,7 @@ VfatFlushFile(
IoStatus.Status = STATUS_SUCCESS; IoStatus.Status = STATUS_SUCCESS;
} }
ExAcquireResourceExclusiveLite(&DeviceExt->DirResource, TRUE);
if (BooleanFlagOn(Fcb->Flags, FCB_IS_DIRTY)) if (BooleanFlagOn(Fcb->Flags, FCB_IS_DIRTY))
{ {
Status = VfatUpdateEntry(DeviceExt, Fcb); Status = VfatUpdateEntry(DeviceExt, Fcb);
@ -41,6 +42,8 @@ VfatFlushFile(
IoStatus.Status = Status; IoStatus.Status = Status;
} }
} }
ExReleaseResourceLite(&DeviceExt->DirResource);
return IoStatus.Status; return IoStatus.Status;
} }