Replaced calls to malloc(), and free() to their equivalent
allocation functions from GLib.

Also added checking for null after ENV_CURVE allocation
following the same pattern of checking on preceeding
table allocations.

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
---
 hw/audio/fmopl.c | 41 ++++++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 17 deletions(-)

diff --git a/hw/audio/fmopl.c b/hw/audio/fmopl.c
index 45f15c53b3..6cecf2b963 100644
--- a/hw/audio/fmopl.c
+++ b/hw/audio/fmopl.c
@@ -607,27 +607,34 @@ static int OPLOpenTable( void )
 	double pom;
 
 	/* allocate dynamic tables */
-    if((TL_TABLE = malloc(TL_MAX * 2 * sizeof(int32_t))) == NULL)
+    if((TL_TABLE = g_try_new(int32_t, TL_MAX * 2)) == NULL)
         return 0;
-    if((SIN_TABLE = malloc(SIN_ENT * 4 *sizeof(int32_t *))) == NULL)
+    if((SIN_TABLE = g_try_new(int32_t *, SIN_ENT * 4)) == NULL)
     {
-        free(TL_TABLE);
+        g_free(TL_TABLE);
         return 0;
     }
-    if((AMS_TABLE = malloc(AMS_ENT * 2 * sizeof(int32_t))) == NULL)
+    if((AMS_TABLE = g_try_new(int32_t, AMS_ENT * 2)) == NULL)
     {
-        free(TL_TABLE);
-        free(SIN_TABLE);
+        g_free(TL_TABLE);
+        g_free(SIN_TABLE);
         return 0;
     }
-    if((VIB_TABLE = malloc(VIB_ENT *2 * sizeof(int32_t))) == NULL)
+    if((VIB_TABLE = g_try_new(int32_t, VIB_ENT * 2)) == NULL)
     {
-        free(TL_TABLE);
-        free(SIN_TABLE);
-        free(AMS_TABLE);
+        g_free(TL_TABLE);
+        g_free(SIN_TABLE);
+        g_free(AMS_TABLE);
+        return 0;
+    }
+    if((ENV_CURVE = g_try_new(int32_t, 2 * EG_ENT + 1)) == NULL)
+    {
+        g_free(TL_TABLE);
+        g_free(SIN_TABLE);
+        g_free(AMS_TABLE);
+        g_free(VIB_TABLE);
         return 0;
     }
-    ENV_CURVE = g_new(int32_t, 2 * EG_ENT + 1);
 	/* make total level table */
 	for (t = 0;t < EG_ENT-1 ;t++){
 		rate = ((1<<TL_BITS)-1)/pow(10,EG_STEP*t/20);	/* dB -> voltage */
@@ -696,10 +703,10 @@ static int OPLOpenTable( void )
 static void OPLCloseTable( void )
 {
     g_free(ENV_CURVE);
-    free(TL_TABLE);
-    free(SIN_TABLE);
-    free(AMS_TABLE);
-    free(VIB_TABLE);
+    g_free(TL_TABLE);
+    g_free(SIN_TABLE);
+    g_free(AMS_TABLE);
+    g_free(VIB_TABLE);
 }
 
 /* CSM Key Control */
@@ -1082,7 +1089,7 @@ FM_OPL *OPLCreate(int clock, int rate)
 	state_size  = sizeof(FM_OPL);
 	state_size += sizeof(OPL_CH)*max_ch;
 	/* allocate memory block */
-    ptr = malloc(state_size);
+    ptr = g_try_malloc(state_size);
 	if(ptr==NULL) return NULL;
 	/* clear */
 	memset(ptr,0,state_size);
@@ -1128,7 +1135,7 @@ void OPLDestroy(FM_OPL *OPL)
 	}
 #endif
 	OPL_UnLockTable();
-    free(OPL);
+    g_free(OPL);
 }
 
 /* ----------  Option handlers ----------       */
-- 
2.25.1