Kernel/x86 - Fixed ACPICA shim not zeroing allocated memory

diff --git a/KernelLand/Kernel/arch/x86/acpica.c b/KernelLand/Kernel/arch/x86/acpica.c
index 7bbe1cd..43a1854 100644 (file)
--- a/KernelLand/Kernel/arch/x86/acpica.c
+++ b/KernelLand/Kernel/arch/x86/acpica.c
@@ -6,7 +6,7 @@
  * - ACPICA Interface
  */
 #define ACPI_DEBUG_OUTPUT      1
-#define DEBUG  1
+#define DEBUG  0
 #define _AcpiModuleName "Shim"
 #define _COMPONENT     "Acess"
 #include <acpi.h>
@@ -137,7 +137,10 @@ ACPI_STATUS AcpiOsCreateCache(char *CacheName, UINT16 ObjectSize, UINT16 MaxDept
        namelen = (namelen + 3) & ~3;
 
        ret = malloc(sizeof(*ret) + MaxDepth*sizeof(char) + namelen + MaxDepth*ObjectSize);
-       if( !ret )      return AE_NO_MEMORY;
+       if( !ret ) {
+               Log_Notice("ACPICA", "%s: malloc() fail", __func__);
+               return AE_NO_MEMORY;
+       }
 
        ret->nObj = MaxDepth;
        ret->ObjectSize = ObjectSize;
@@ -149,7 +152,7 @@ ACPI_STATUS AcpiOsCreateCache(char *CacheName, UINT16 ObjectSize, UINT16 MaxDept
                ret->Name[0] = 0;
        memset(ret->ObjectStates, 0, sizeof(char)*MaxDepth);
 
-       LOG("Allocated cache '%s' (%i x 0x%x)", CacheName, MaxDepth, ObjectSize);
+       LOG("Allocated cache %p '%s' (%i x 0x%x)", ret, CacheName, MaxDepth, ObjectSize);
        
        *ReturnCache = ret;
        
@@ -183,11 +186,14 @@ void *AcpiOsAcquireObject(ACPI_CACHE_T *Cache)
                if( !Cache->ObjectStates[i] ) {
                        Cache->ObjectStates[i] = 1;
                        void *rv = (char*)Cache->First + i*Cache->ObjectSize;
+                       memset(rv, 0, Cache->ObjectSize);
                        LEAVE('p', rv);
                        return rv;
                }
        }
-       
+
+       Log_Debug("ACPICA", "AcpiOsAcquireObject: %i objects used", Cache->nObj);       
+
        LEAVE('n');
        return NULL;
 }
@@ -199,9 +205,9 @@ ACPI_STATUS AcpiOsReleaseObject(ACPI_CACHE_T *Cache, void *Object)
 
        tVAddr delta = (tVAddr)Object - (tVAddr)Cache->First;
        delta /= Cache->ObjectSize;
-       LOG("delta = %i, (limit %i)", delta, Cache->nObj);
+       LOG("Cache=%p, delta = %i, (limit %i)", Cache, delta, Cache->nObj);
        
-       if( delta > Cache->nObj )
+       if( delta >= Cache->nObj )
                return AE_BAD_PARAMETER;
        
        Cache->ObjectStates[delta] = 0;
@@ -309,8 +315,10 @@ ACPI_STATUS AcpiOsCreateMutex(ACPI_MUTEX *OutHandle)
        if( !OutHandle )
                return AE_BAD_PARAMETER;
        tMutex  *ret = calloc( sizeof(tMutex), 1 );
-       if( !ret )
+       if( !ret ) {
+               Log_Notice("ACPICA", "%s: malloc() fail", __func__);
                return AE_NO_MEMORY;
+       }
        ret->Name = "AcpiOsCreateMutex";
        *OutHandle = ret;
        
@@ -344,8 +352,10 @@ ACPI_STATUS AcpiOsCreateSemaphore(UINT32 MaxUnits, UINT32 InitialUnits, ACPI_SEM
        if( !OutHandle )
                return AE_BAD_PARAMETER;
        tSemaphore      *ret = calloc( sizeof(tSemaphore), 1 );
-       if( !ret )
+       if( !ret ) {
+               Log_Notice("ACPICA", "%s: malloc() fail", __func__);
                return AE_NO_MEMORY;
+       }
        
        Semaphore_Init(ret, InitialUnits, MaxUnits, "AcpiOsCreateSemaphore", "");
        *OutHandle = ret;