vaapi: fix profile detection

fixup: a47b657e

modules/codec/avcodec/vaapi.c

@@ -86,9 +86,7 @@ static vlc_va_vaapi_t *vlc_va_vaapi_Get( void *p_va )
 /* */
 static int Open( vlc_va_vaapi_t *p_va, int i_codec_id, int i_count )
 {
-    VAProfile i_profile, *p_profiles_list;
-    bool b_supported_profile = false;
-    int i_profiles_nb = 0;
+    VAProfile i_profile;
     int i_surface_count;
 
     /* NOTE: The number of surfaces requested is calculated
@@ -147,15 +145,17 @@ static int Open( vlc_va_vaapi_t *p_va, int i_codec_id, int i_count )
     p_va->conn->lock();
 
     /* Check if the selected profile is supported */
-    i_profiles_nb = vaMaxNumEntrypoints( p_va->display );
-    p_profiles_list = malloc( i_profiles_nb * sizeof( VAProfile ) );
+    bool b_supported_profile = false;
+    int i_profiles_nb = vaMaxNumProfiles( p_va->conn->p_display );
+    VAProfile *p_profiles_list = calloc( i_profiles_nb, sizeof( VAProfile ) );
     if ( !p_profiles_list )
         goto error;
-    if ( vaQueryConfigProfiles( p_va->display, p_profiles_list, &i_profiles_nb ) == VA_STATUS_SUCCESS )
+    VAStatus status = vaQueryConfigProfiles( p_va->conn->p_display, p_profiles_list, &i_profiles_nb );
+    if ( status == VA_STATUS_SUCCESS )
     {
-        while( --i_profiles_nb >= 0 )
+        for ( int i = 0; i < i_profiles_nb; i++ )
         {
-            if ( p_profiles_list[i_profiles_nb] == i_profile )
+            if ( p_profiles_list[i] == i_profile )
             {
                 b_supported_profile = true;
                 break;