- brelse (p_s_tb->L[i]);p_s_tb->L[i] = 0;
- brelse (p_s_tb->R[i]);p_s_tb->R[i] = 0;
- brelse (p_s_tb->FL[i]);p_s_tb->FL[i] = 0;
- brelse (p_s_tb->FR[i]);p_s_tb->FR[i] = 0;
- brelse (p_s_tb->CFL[i]);p_s_tb->CFL[i] = 0;
- brelse (p_s_tb->CFR[i]);p_s_tb->CFR[i] = 0;
+ brelse (p_s_tb->L[i]);p_s_tb->L[i] = NULL;
+ brelse (p_s_tb->R[i]);p_s_tb->R[i] = NULL;
+ brelse (p_s_tb->FL[i]);p_s_tb->FL[i] = NULL;
+ brelse (p_s_tb->FR[i]);p_s_tb->FR[i] = NULL;
+ brelse (p_s_tb->CFL[i]);p_s_tb->CFL[i] = NULL;
+ brelse (p_s_tb->CFR[i]);p_s_tb->CFR[i] = NULL;