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[NTOSKRNL]

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Fix bugs in ExInterlocked functions.

svn path=/trunk/; revision=52875
This commit is contained in:
Timo Kreuzer
2011-07-25 21:06:44 +00:00
parent 04a0c4b70a
commit f1011b2525
1 changed files with 25 additions and 16 deletions
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reactos/ntoskrnl/ex/i386/interlocked.c
+25 -16
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@@ -85,7 +85,7 @@ ExInterlockedAddLargeInteger(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the old value */
/* Return the old value */
return OldValue;
}
@@ -111,7 +111,7 @@ ExInterlockedAddUlong(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the old value */
/* Return the old value */
return OldValue;
}
@@ -137,8 +137,8 @@ ExInterlockedInsertHeadList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the first entry */
return FirstEntry;
/* Return the old first entry or NULL for empty list */
return (FirstEntry == ListHead) ? NULL : FirstEntry;
}
PLIST_ENTRY
@@ -163,8 +163,8 @@ ExInterlockedInsertTailList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the last entry */
return LastEntry;
/* Return the old last entry or NULL for empty list */
return (LastEntry == ListHead) ? NULL : LastEntry;
}
PLIST_ENTRY
@@ -179,13 +179,22 @@ ExInterlockedRemoveHeadList(
/* Disable interrupts and acquire the spinlock */
LockHandle = _ExiDisableInteruptsAndAcquireSpinlock(Lock);
/* Remove the first entry from the list head */
ListEntry = RemoveHeadList(ListHead);
/* Check if the list is empty */
if (IsListEmpty(ListHead))
{
/* Return NULL */
ListEntry = NULL;
}
else
{
/* Remove the first entry from the list head */
ListEntry = RemoveHeadList(ListHead);
}
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the entry */
/* Return the entry */
return ListEntry;
}
@@ -207,7 +216,7 @@ ExInterlockedPopEntryList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the entry */
/* Return the entry */
return ListEntry;
}
@@ -233,7 +242,7 @@ ExInterlockedPushEntryList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the entry */
/* Return the entry */
return OldListEntry;
}
@@ -299,7 +308,7 @@ ExfInterlockedAddUlong(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the old value */
/* Return the old value */
return OldValue;
}
@@ -325,8 +334,8 @@ ExfInterlockedInsertHeadList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the first entry */
return FirstEntry;
/* Return the old first entry or NULL for empty list */
return (FirstEntry == ListHead) ? NULL : FirstEntry;
}
PLIST_ENTRY
@@ -351,8 +360,8 @@ ExfInterlockedInsertTailList(
/* Release the spinlock and restore interrupts */
_ExiReleaseSpinLockAndRestoreInterupts(Lock, LockHandle);
/* return the last entry */
return LastEntry;
/* Return the old last entry or NULL for empty list */
return (LastEntry == ListHead) ? NULL : LastEntry;
}