53 	void *p2;  in bread()  local
58 	p2 = data;  in bread()
66 		p2 = malloc(size);  in bread()
67 		if (p2 == NULL) {  in bread()
72 	cnt = pread(disk->d_fd, p2, size, (off_t)(blockno * disk->d_bsize));  in bread()
85 	if (p2 != data) {  in bread()
86 		memcpy(data, p2, size);  in bread()
87 		free(p2);  in bread()
91 	if (p2 != data) {  in bread()
92 		free(p2);  in bread()
102 	void *p2 = NULL;  in bwrite()  local
119 		p2 = malloc(size);  in bwrite()
120 		if (p2 == NULL) {  in bwrite()
124 		memcpy(p2, data, size);  in bwrite()
125 		data = p2;  in bwrite()
128 	if (p2 != NULL)  in bwrite()
129 		free(p2);  in bwrite()